{"id":4202,"date":"2022-09-23T19:47:17","date_gmt":"2022-09-23T19:47:17","guid":{"rendered":"https:\/\/www.studyzonebd.com\/math\/?p=4202"},"modified":"2022-09-23T20:30:55","modified_gmt":"2022-09-23T20:30:55","slug":"class-six-chapter-06-lesson-6-2","status":"publish","type":"post","link":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/","title":{"rendered":"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf"},"content":{"rendered":"\n

\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983 \u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u09ec\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math <\/a>Book Solution | Chapter <\/a>06 : Basic concepts of geometry | Online Solution<\/p>\n\n\n\n

\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 : \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c, \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c<\/h4>\n\n\n\n

\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 \u098f\u09b0 \u09b8\u0995\u09b2 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u0989\u09a4\u09cd\u09a4\u09b0 \u098f\u0996\u09be\u09a8\u09c7 \u09b0\u09df\u09c7\u099b\u09c7\u0964 \u09ec\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/p>\n\n\n\n

\u09ec\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ec\u09b7\u09cd\u09a0 \u0985\u09a7\u09cd\u09af\u09be\u09df \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/span><\/h4>\n\n\n\n

\u09e7<\/strong>. <\/strong>\u09b6\u09c2\u09a8\u09cd\u09af\u09b8\u09cd\u09a5\u09be\u09a8<\/strong> <\/strong>\u09aa\u09c2\u09b0\u09a3<\/strong> <\/strong>\u0995\u09b0\u0983<\/strong><\/strong><\/p>\n\n\n\n

(\u0995)\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c7\u09b0\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u2026\u2026\u2026.\u0964
\u0989\u09a4\u09cd\u09a4\u09b0\u0983\u00a0\u09ef\u09e6\u09e6<\/sup>\u0964
(\u0996)\u00a0\u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c7\u09b0\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c7\u09b0\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u00a0\u0985\u09aa\u09c7\u0995\u09cd\u09b7\u09be\u2026\u2026.\u0964
\u0989\u09a4\u09cd\u09a4\u09b0\u0983\u00a0\u0995\u09ae\u0964
(\u0997)\u00a0\u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3\u09c7\u09b0\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c7\u09b0\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09cd\u09aa\u09aa\u09c7\u0995\u09cd\u09b7\u09be\u2026\u2026\u2026\u0964
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(\u0999)\u00a0\u2026\u2026..\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0\u2026\u2026.\u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3\u00a0\u098f\u09ac\u0982\u2026\u2026\u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u00a0\u09a5\u09be\u0995\u09c7\u0964
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(\u099a)\u00a0\u09af\u09c7\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u00a0\u09aa\u09cd\u09b0\u09a4\u09cd\u09af\u09c7\u0995\u00a0\u0995\u09cb\u09a3\u09c7\u09b0\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u2026\u2026..\u09a5\u09c7\u0995\u09c7\u00a0\u0995\u09ae\u00a0\u09b8\u09c7\u099f\u09bf\u00a0\u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c0\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964
\u0989\u09a4\u09cd\u09a4\u09b0\u0983\u00a0\u09ef\u09e6\u09e6<\/sup>\u0964<\/p>\n\n\n\n

\u09e8<\/strong>. <\/strong>\u0987\u0989\u0995\u09cd\u09b2\u09bf\u09a1<\/strong> <\/strong>\u0995\u09cb\u09a8<\/strong> <\/strong>\u09a6\u09c7\u09b6\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09a8\u09cd\u09a1\u09bf\u09a4<\/strong> <\/strong>\u099b\u09bf\u09b2\u09c7\u09a8<\/strong>?<\/strong><\/p>\n\n\n\n

(\u0995) \u0987\u09a4\u09be\u09b2\u09bf   (\u0996) \u099c\u09be\u09b0\u09cd\u09ae\u09be\u09a8\u09bf
(\u0997) \u0997\u09cd\u09b0\u09bf\u09b8      (\u0998) \u09b8\u09cd\u09aa\u09c7\u09a8
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09e9<\/strong>. <\/strong>\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a4\u09bf<\/strong> <\/strong>\u09aa\u09be\u09a6\u09cd\u09af\u09c7\u09b0<\/strong> <\/strong>\u0993\u09aa\u09b0<\/strong> <\/strong>\u09b2\u09bf\u0996\u09bf\u09a4<\/strong> <\/strong>\u0987\u0989\u0995\u09cd\u09b2\u09bf\u09a1\u09c7\u09b0<\/strong> <\/strong>\u09ac\u0987\u099f\u09bf\u09b0<\/strong> <\/strong>\u09a8\u09be\u09ae<\/strong> <\/strong>\u0995\u09bf<\/strong>?<\/strong><\/p>\n\n\n\n

(\u0995) Algebra     (\u0996) Elements
(\u0997) Geometry   (\u0998) Mathematic
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0996<\/p>\n\n\n\n

\u09ea<\/strong>. <\/strong>\u0996\u09cd\u09b0\u09bf\u09b7\u09cd\u099f\u09aa\u09c2\u09b0\u09cd\u09ac<\/strong> <\/strong>\u0995\u09a4<\/strong> <\/strong>\u0985\u09ac\u09cd\u09a6\u09c7<\/strong> <\/strong>\u0997\u09cd\u09b0\u09bf\u0995<\/strong> <\/strong>\u09aa\u09a8\u09cd\u09a1\u09bf\u09a4<\/strong> <\/strong>\u0987\u0989\u0995\u09cd\u09b2\u09bf\u09a1<\/strong> <\/strong>\u09a4\u09be\u09b0<\/strong> Elements <\/strong>\u09aa\u09c1\u09b8\u09cd\u09a4\u0995\u09c7<\/strong> <\/strong>\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u0995<\/strong> <\/strong>\u09aa\u09cd\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09b0<\/strong> <\/strong>\u09b8\u0982\u099c\u09cd\u099e\u09be<\/strong> <\/strong>\u0993<\/strong> <\/strong>\u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09af\u09bc\u09be<\/strong> <\/strong>\u09b8\u09ae\u09c2\u09b9<\/strong> <\/strong>\u09b2\u09bf\u09aa\u09bf\u09ac\u09a6\u09cd\u09a7<\/strong> <\/strong>\u0995\u09b0\u09c7\u09a8<\/strong>?<\/strong><\/p>\n\n\n\n

(\u0995) \u09e9\u09e6\u09e6    (\u0996) \u09ea\u09e6\u09e6   (\u0997) \u09eb\u09e6\u09e6    (\u0998) \u09ec\u09e6\u09e6
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0995<\/p>\n\n\n\n

\u09eb<\/strong>. <\/strong>\u09a8\u09bf\u099a\u09c7\u09b0<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong> <\/strong>\u09b9\u09b2\u09cb<\/strong>; <\/strong>\u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb<\/strong> <\/strong>\u0986\u0981\u0995\u0964<\/strong><\/strong><\/p>\n\n\n\n

(\u0995) 300<\/sup>   (\u0996) 450<\/sup>   (\u0997) 600<\/sup>    (\u0998) 750<\/sup><\/p>\n\n\n\n

(\u0999) 850<\/sup>   (\u099a) 1200<\/sup>  (\u099b) 1350  <\/sup> (\u099c) 1600<\/sup><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0\u00a0\u09ac\u09bf\u09ac\u09b0\u09a8\u0983<\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 300<\/sup>  <\/strong><\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 300 <\/sup>\u0964<\/p>\n\n\n\n

(<\/strong>\u0996<\/strong>) 450<\/sup>  <\/strong><\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 450 <\/sup>\u0964<\/p>\n\n\n\n

(<\/strong>\u0997<\/strong>) 600<\/sup>   <\/strong><\/strong><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 60 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 600 <\/sup>\u0964<\/p>\n\n\n\n

(<\/strong>\u0998<\/strong>) 750<\/sup><\/strong><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 75 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 750 <\/sup>\u0964<\/p>\n\n\n\n

 (<\/strong>\u0999<\/strong>) 850<\/sup>  <\/strong><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 85 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 850 <\/sup>\u0964<\/p>\n\n\n\n

 (<\/strong>\u099a<\/strong>) 1200<\/sup> <\/strong><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 120 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 1200 <\/sup>\u0964<\/p>\n\n\n\n

 (<\/strong>\u099b<\/strong>) 1350  <\/sup> <\/strong><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 135 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 1350 <\/sup>\u0964<\/p>\n\n\n\n

 (<\/strong>\u099c<\/strong>) 1600<\/sup><\/strong><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 160 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 1600 <\/sup>\u0964<\/p>\n\n\n\n

\u09ec.\u00a0\u0985\u09a8\u09c1\u09ae\u09be\u09a8\u00a0\u0995\u09b0\u09c7\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c0,\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3\u09c0\u00a0\u0993\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c0\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u00a0\u0986\u0981\u0995\u0964<\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) <\/strong>\u09aa\u09cd\u09b0\u09a4\u09bf\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1<\/strong> <\/strong>\u09a4\u09bf\u09a8\u099f\u09bf\u09b0<\/strong> <\/strong>\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af<\/strong> <\/strong>\u09ae\u09be\u09aa<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u0996\u09be\u09a4\u09be\u09af\u09bc<\/strong> <\/strong>\u09b2\u09c7\u0996\u0964
<\/strong>(<\/strong>\u0996<\/strong>) <\/strong>\u09aa\u09cd\u09b0\u09a4\u09bf\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u09a4\u09bf\u09a8\u099f\u09bf<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u0995\u09b0<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u0996\u09be\u09a4\u09be\u09af\u09bc<\/strong> <\/strong>\u09b2\u09c7\u0996\u09be<\/strong> <\/strong>\u09a6\u09c7\u0996\u09c7<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u09a4\u09bf\u09a8\u099f\u09bf\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0<\/strong> <\/strong>\u09af\u09cb\u0997\u09ab\u09b2<\/strong> <\/strong>\u09b8\u09ac\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u098f\u0995\u0987<\/strong> <\/strong>\u09ac\u09b2\u09c7<\/strong> <\/strong>\u09ae\u09a8\u09c7<\/strong> <\/strong>\u09b9\u09af\u09bc<\/strong> <\/strong>\u0995\u09bf\u09a8\u09be<\/strong> <\/strong>\u09ac\u09b2\u0964<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\u0985\u09a8\u09c1\u09ae\u09be\u09a8\u00a0\u0995\u09b0\u09c7\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c0,\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3\u09c0\u00a0\u0993\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c0\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u00a0\u0986\u0981\u0995\u09be\u00a0\u09b9\u09b2\u09cb\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

(\u0995) \u09b0\u09c1\u09b2\u09be\u09b0\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09be\u09b9\u09c1\u0997\u09c1\u09b2\u09cb\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa\u09be \u09b9\u09b2\u09cb\u0964<\/p>\n\n\n\n

ABC \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 AB \u09ac\u09be\u09b9\u09c1 \u09ac\u09b0\u09be\u09ac\u09b0 \u09b0\u09c1\u09b2\u09be\u09b0 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09bf\u0964 \u09b2\u0995\u09cd\u09b7 \u0995\u09b0\u09bf \u09af\u09c7\u09a8 AB \u09ac\u09be\u09b9\u09c1\u09b0 B \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b0\u09c1\u09b2\u09be\u09b0\u09c7\u09b0 0 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09bf\u09a4 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09b0 \u09b8\u09be\u09a5\u09c7 \u09ae\u09bf\u09b2\u09c7\u0964 \u098f\u0996\u09a8 AB \u09ac\u09be\u09b9\u09c1\u09b0 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b0\u09c1\u09b2\u09be\u09b0\u09c7\u09b0 3.9 \u09b8\u09c7\u09ae\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09bf\u09a4 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09aa\u09a1\u09bc\u09c7\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982, AB=3.9 \u09b8\u09c7\u09ae\u09bf\u0964
\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7 BC \u0993 AC \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09b2\u09c7
BC=4 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982 AC=4 \u09b8\u09c7\u09ae\u09bf \u09aa\u09be\u0993\u09af\u09bc\u09be \u09af\u09be\u09af\u09bc\u0964
\u0986\u09a8\u09c1\u09b0\u09c1\u09aa\u09ad\u09be\u09ac\u09c7, DEF \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u098f\u09ac\u0982 GHK \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u098f\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09aa\u09be\u0987,
DE=4.3 \u09b8\u09c7\u09ae\u09bf, EF=3.9 \u09b8\u09c7\u09ae\u09bf, DF=6.8 \u09b8\u09c7\u09ae\u09bf, GH=4 \u09b8\u09c7\u09ae\u09bf, HK=4 \u09b8\u09c7\u09ae\u09bf, KG=5.6 \u09b8\u09c7\u09ae\u09bf\u0964 <\/p>\n\n\n\n

(\u0996) \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09be \u09b9\u09b2\u09cb\u0964 ABC \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u2220ABC \u098f\u09b0 B \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09bf\u0964 \u09b2\u0995\u09cd\u09b7\u09cd\u09af \u0995\u09b0\u09bf \u09af\u09c7\u09a8 BC \u09b0\u09c7\u0996\u09be\u09b0 \u09b8\u09be\u09a5\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0997\u09be\u09ae\u09c0 \u09ac\u09cd\u09af\u09be\u09b8 \u09ae\u09bf\u09b2\u09c7 \u09af\u09be\u09af\u09bc\u0964 \u098f\u0996\u09a8 BA \u09b0\u09c7\u0996\u09be \u099a\u09be\u0981\u09a6\u09be\u09b0 60 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09bf\u09a4 \u09b0\u09c7\u0996\u09be\u09af\u09bc \u09aa\u09a1\u09bc\u09c7\u0964 \u09b8\u09c1\u09a4\u09b0\u09be\u0982, \u2220ABC=600<\/sup>\u0964<\/p>\n\n\n\n

\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7, \u2220BAC \u0993 \u2220ACB \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09b2\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 650<\/sup> \u0993 550<\/sup> \u09aa\u09be\u0993\u09af\u09bc\u09be \u09af\u09be\u09af\u09bc\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982, \u2220ABC=600<\/sup>,  <\/sup>\u2220BAC=650<\/sup>,   <\/sup>\u2220ACB=550
<\/sup>\u098f\u0996\u09a8, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cb\u09a3 \u09a4\u09bf\u09a8\u099f\u09bf\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2=\u2220ABC+\u2220BAC+\u2220ACB=600<\/sup>+650<\/sup>+550<\/sup>=1800
<\/sup>\u0985\u09a8\u09c1\u09b0\u09c1\u09aa\u09ad\u09be\u09ac\u09c7, DEF \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7,
\u2220EDF=330<\/sup>, \u2220DFE=350<\/sup>, \u2220DEF=1120
<\/sup>\u098f\u09ac\u0982, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cb\u09a3 \u09a4\u09bf\u09a8\u099f\u09bf\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2=\u2220EDF+\u2220DFE+\u2220DEF=330<\/sup>+350<\/sup>+1120<\/sup>=1800
<\/sup>\u0986\u09ac\u09be\u09b0, GHK \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7,
\u2220GHK=900<\/sup>, \u2220HGK=450<\/sup>, \u2220GKH=450
<\/sup>\u098f\u09ac\u0982, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cb\u09a3 \u09a4\u09bf\u09a8\u099f\u09bf\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2=\u2220GHK+\u2220HGK+\u2220GKH=900<\/sup>+450<\/sup>+450<\/sup>=1800
<\/sup>\u09b8\u09c1\u09a4\u09b0\u09be\u0982 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u09a4\u09bf\u09a8\u099f\u09bf\u09b0 \u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u09a5\u09c7\u0995\u09c7 \u09a6\u09c7\u0996\u09be \u09af\u09be\u09af\u09bc \u09b8\u09ac\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u098f\u0995\u0987 \u098f\u09ac\u0982 \u09a4\u09be 1800<\/sup>\u0964<\/p>\n\n\n\n

\u09ed<\/strong>. <\/strong>\u09a8\u09bf\u099a\u09c7<\/strong> <\/strong>\u0995\u09af\u09bc\u09c7\u0995\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong> <\/strong>\u09b9\u09b2\u09cb\u0964<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a4\u09cd\u09af\u09c7\u0995<\/strong> <\/strong>\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09aa\u09c2\u09b0\u0995<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u0989\u09b2\u09cd\u09b2\u09c7\u0996<\/strong> <\/strong>\u0995\u09b0<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u09aa\u09c2\u09b0\u0995<\/strong> <\/strong>\u0995\u09cb\u09a3\u099f\u09bf<\/strong> <\/strong>\u0986\u0981\u0995\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 600<\/sup> (<\/strong>\u0996<\/strong>) 450<\/sup> (<\/strong>\u0997<\/strong>) 720<\/sup> (<\/strong>\u0998<\/strong>) 250<\/sup> (<\/strong>\u0999<\/strong>) 500<\/sup><\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc\u0983
<\/strong>\u0986\u09ae\u09b0\u09be \u099c\u09be\u09a8\u09bf, \u09a6\u09c1\u0987\u099f\u09bf \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 900<\/sup> \u09b9\u09b2\u09c7 \u0995\u09cb\u09a3 \u09a6\u09c1\u0987\u099f\u09bf\u09b0 \u098f\u0995\u099f\u09bf\u0995\u09c7 \u0985\u09aa\u09b0\u099f\u09bf\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 \u09ac\u09b2\u09c7\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982,
(\u0995) 600<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3=900<\/sup>-600<\/sup>=300
<\/sup>(\u0996) 450<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3=900<\/sup>-450<\/sup>=450
<\/sup>(\u0997) 720<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3=900<\/sup>-720<\/sup>=180
<\/sup>(\u0998) 250<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3=900<\/sup>-250<\/sup>=650
<\/sup>(\u0999) 500 <\/sup>\u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3=900<\/sup>-500<\/sup>=400<\/sup><\/p>\n\n\n\n

\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a8 \u0985\u0999\u09cd\u0995\u09a8\u0983<\/p>\n\n\n\n

(\u0995) 600<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 300<\/sup><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 30 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 300 <\/sup>\u0964<\/p>\n\n\n\n

(\u0996) 450<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 450<\/sup><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 45 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 450 <\/sup>\u0964<\/p>\n\n\n\n

(\u0997) 720<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 180<\/sup><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 18 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 180 <\/sup>\u0964<\/p>\n\n\n\n

(\u0998) 250<\/sup> \u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 650<\/sup><\/p>\n\n\n\n

\u098f\u0995\u099f\u09bf \u099a\u09be\u0981\u09a6\u09be \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 \u09b0\u09c7\u0996\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a5\u09c7\u0995\u09c7 \u09ac\u09cd\u09af\u09be\u09b8 \u09ac\u09b0\u09be\u09ac\u09b0 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995\u09c7 \u0995\u09be\u0997\u099c\u09c7\u09b0 \u0989\u09aa\u09b0 OA \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964 \u09a1\u09be\u09a8 \u09a6\u09bf\u0995 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 65 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09a6\u09be\u0997\u09c7\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 B \u09a8\u09bf\u0987\u0964 \u098f\u09ac\u09be\u09b0, \u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09bf\u09af\u09bc\u09c7 OB \u09b0\u09b6\u09cd\u09ae\u09bf \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 650 <\/sup>\u0964<\/p>\n\n\n\n

(\u0999) 500\u00a0<\/sup>\u098f\u09b0\u00a0\u09aa\u09c2\u09b0\u0995\u00a0\u0995\u09cb\u09a3\u00a0= 90\u00b0<\/sup>– 50\u00b0<\/sup>= 40\u00b0<\/sup><\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u098f\u0995\u099f\u09bf\u00a0\u099a\u09be\u0981\u09a6\u09be\u00a0\u0995\u09be\u0997\u099c\u09c7\u09b0\u00a0\u0989\u09aa\u09b0\u00a0\u09b0\u09c7\u0996\u09c7\u00a0\u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u00a0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u00a0\u09a5\u09c7\u0995\u09c7\u00a0\u09ac\u09cd\u09af\u09be\u09b8\u00a0\u09ac\u09b0\u09be\u09ac\u09b0\u00a0\u09a1\u09be\u09a8\u00a0\u09a6\u09bf\u0995\u09c7\u00a0\u0995\u09be\u0997\u099c\u09c7\u09b0\u00a0\u0989\u09aa\u09b0\u00a0OA\u00a0\u09b0\u09b6\u09cd\u09ae\u09bf\u00a0\u0986\u0981\u0995\u09bf\u0964\u00a0\u09a1\u09be\u09a8\u00a0\u09a6\u09bf\u0995\u00a0\u09a5\u09c7\u0995\u09c7\u00a0\u099a\u09be\u0981\u09a6\u09be\u09b0\u00a0\u09a8\u09bf\u099a\u09c7\u09b0\u00a0\u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0\u00a0500<\/sup>\u00a0\u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995\u00a0\u09a6\u09be\u0997\u09c7\u09b0\u00a0\u0989\u09aa\u09b0\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u00a0B\u00a0\u09a8\u09bf\u0987\u0964\u00a0\u098f\u09ac\u09be\u09b0,\u00a0\u099a\u09be\u09a6\u09be\u099f\u09bf\u0995\u09c7\u00a0\u09b8\u09b0\u09bf\u09af\u09bc\u09c7\u00a0OB\u00a0\u09b0\u09b6\u09cd\u09ae\u09bf\u00a0\u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

\u2234\u2220AOB \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa 500 <\/sup>\u0964<\/p>\n\n\n\n

\u09ee<\/strong>. <\/strong>\u09a8\u09bf\u099a\u09c7\u09b0<\/strong> <\/strong>\u0995\u09af\u09bc\u09c7\u0995\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong> <\/strong>\u09b9\u09b2\u09cb\u0964<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a4\u09cd\u09af\u09c7\u0995<\/strong> <\/strong>\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u098f\u0995\u0987<\/strong> <\/strong>\u099a\u09bf\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong>, <\/strong>\u098f\u09b0<\/strong> <\/strong>\u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u0993<\/strong> <\/strong>\u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u0986\u0981\u0995<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u098f\u09a6\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u0989\u09b2\u09cd\u09b2\u09c7\u0996<\/strong> <\/strong>\u0995\u09b0\u0964<\/strong> <\/strong>\u099a\u09bf\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa<\/strong> <\/strong>\u0995\u09cb\u09a3\u099f\u09bf\u0993<\/strong> <\/strong>\u099a\u09bf\u09b9\u09cd\u09a8\u09bf\u09a4<\/strong> <\/strong>\u0995\u09b0\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 450 <\/sup> (<\/strong>\u0996<\/strong>) 1200  <\/sup> (<\/strong>\u0997<\/strong>) 720<\/sup>  (<\/strong>\u0998<\/strong>) 1100  <\/sup> (<\/strong>\u0999<\/strong>) 850<\/sup><\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8 : \u0986\u09ae\u09b0\u09be \u099c\u09be\u09a8\u09bf, \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u09e7\u09ee\u09e6\u00b0 \u09b9\u09b2\u09c7, \u0995\u09cb\u09a3 \u09a6\u09c1\u0987\u099f\u09bf\u09b0 \u098f\u0995\u099f\u09bf \u0985\u09aa\u09b0\u099f\u09bf\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u0964
(\u0995) \u09ea\u09eb\u00b0<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u0995\u09cb\u09a3, \u2220ABC = \u09ea\u09eb\u00b0
\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09ea\u09eb\u00b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u2220ABD \u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa
= (\u09e7\u09ee\u09e6\u00b0 \u2013 \u09ea\u09eb\u00b0) = \u09e7\u09e9\u09eb\u00b0
\u2234\u09ea\u09eb\u00b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3, \u2220ABD = \u09e7\u09e9\u09eb\u00b0 \u098f\u09ac\u0982 \u2220ABC \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09b0\u09b6\u09cd\u09ae\u09bf\u09a6\u09cd\u09ac\u09af\u09bc \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220DBE = \u09ea\u09eb\u00b0
\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220CBE = \u09e7\u09e9\u09eb\u00b0<\/p>\n\n\n\n

(\u0996) \u09e7\u09e8\u09e6\u00b0<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u0995\u09cb\u09a3, \u2220ABC = \u09e7\u09e8\u09e6\u00b0
\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09e7\u09e8\u09e6\u00b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3,
\u2220ABD = (\u09e7\u09ee\u09e6\u00b0 \u2013 \u09e7\u09e8\u09e6\u00b0) = \u09ec\u09e6\u00b0
\u098f\u09ac\u0982 \u2220ABC \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09b0\u09b6\u09cd\u09ae\u09bf\u09a6\u09cd\u09ac\u09af\u09bc \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220DBE = \u09e7\u09e8\u09e6\u00b0
\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220CBE = \u09ec\u09e6\u00b0<\/p>\n\n\n\n

(\u0997) \u09ed\u09e8\u00b0<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u0995\u09cb\u09a3, \u2220ABC = \u09ed\u09e8\u00b0
\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09ed\u09e8\u00b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3,
\u2220ABD = (\u09e7\u09ee\u09e6\u00b0 \u2013 \u09ed\u09e8\u00b0) = \u09e7\u09e6\u09ee\u00b0
\u098f\u09ac\u0982 \u2220ABC \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09b0\u09b6\u09cd\u09ae\u09bf\u09a6\u09cd\u09ac\u09af\u09bc \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220DBE = \u09ed\u09e8\u00b0
\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220CBE = \u09e7\u09e6\u09ee\u00b0<\/p>\n\n\n\n

(\u0998) \u09e7\u09e7\u09e6\u00b0<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u0995\u09cb\u09a3, \u2220ABC = \u09e7\u09e7\u09e6\u00b0
\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09e7\u09e7\u09e6\u00b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3,
\u2220ABD = (\u09e7\u09ee\u09e6\u00b0 \u2013 \u09e7\u09e7\u09e6\u00b0) = \u09ed\u09e6\u00b0
\u098f\u09ac\u0982 \u2220ABC \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09b0\u09b6\u09cd\u09ae\u09bf\u09a6\u09cd\u09ac\u09af\u09bc \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220DBE = \u09e7\u09e7\u09e6\u00b0
\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220CBE = \u09ed\u09e6\u00b0<\/p>\n\n\n\n

(\u0999) \u09ee\u09eb\u00b0<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u0995\u09cb\u09a3, \u2220ABC = \u09ee\u09eb\u00b0
\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09ee\u09eb\u00b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3
\u2220ABD = (\u09e7\u09ee\u09e6\u00b0 \u2013 \u09ee\u09eb\u00b0) = \u09ef\u09eb\u00b0
\u098f\u09ac\u0982 \u2220ABC \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09b0\u09b6\u09cd\u09ae\u09bf\u09a6\u09cd\u09ac\u09af\u09bc \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220DBE = \u09ee\u09eb\u00b0
\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3, \u2220CBE = \u09ef\u09eb\u00b0<\/p>\n\n\n\n

\u09ef.  <\/strong><\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u2220AOB=900<\/sup><\/p>\n\n\n\n

i.. \u2220AOC+\u2220BOC=900
<\/sup>ii.. \u2220AOC+\u2220BOC=\u2220AOB
iii.. \u2220AOC \u0993 \u2220BOC \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3\u0964<\/p>\n\n\n\n

\u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a3\u099f\u09bf \u09b8\u09a0\u09bf\u0995?<\/p>\n\n\n\n

(\u0995) i \u0993 ii     (\u0996) i \u0993 iii
(\u0997) ii \u0993 iii    (\u0998) i, ii \u0993 iii
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0995<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, \u25b3ABC \u098f\u09b0 \u2220BAC=1200<\/sup> \u098f\u09ac\u0982 AD\u22a5BC<\/p>\n\n\n\n

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7\u09b0 \u0986\u09b2\u09cb\u0995\u09c7 \u09e7\u09e6-\u09e7\u09e8 \u09a8\u09ae\u09cd\u09ac\u09b0 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09c7\u09b0 \u0989\u09a4\u09cd\u09a4\u09b0 \u09a6\u09be\u0993\u0983<\/p>\n\n\n\n

\u09e7\u09e6. \u2220ADC=<\/strong>\u0995\u09a4?<\/strong><\/p>\n\n\n\n

(\u0995) 300<\/sup>   (\u0996) 450
<\/sup>(\u0997) 600<\/sup>    (\u0998) 900
<\/sup>\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0998<\/p>\n\n\n\n

\u09e7\u09e7. \u2220ABD=<\/strong>\u098f\u09b0 \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 \u0995\u09cb\u09a3\u099f\u09bf?<\/strong><\/p>\n\n\n\n

(\u0995) \u2220ADB      (\u0996) \u2220CAD
(\u0997) \u2220BAD      (\u0998) \u2220ACD
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09e7\u09e8. \u09b8\u09b0\u09b2 \u09b0\u09c8\u0996\u09bf\u0995 \u0995\u09cb\u09a3 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a3\u099f\u09bf?<\/strong><\/p>\n\n\n\n

(\u0995) \u2220ADB      (\u0996) \u2220CAD
(\u0997) \u2220ACD      (\u0998) \u2220BDC
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0998<\/p>\n\n\n\n

\u09e7\u09e9. \u09b0\u09c7\u0996\u09be\u09b0\u2014<\/strong><\/p>\n\n\n\n

i.. \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09a8\u09c7\u0987<\/p>\n\n\n\n

ii.. \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u0985\u09b0\u09be\u09a8\u09cd\u09a4 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a8\u09c7\u0987 
iii.. \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09aa\u09cd\u09b0\u09b8\u09cd\u09a5 \u09a8\u09c7\u0987<\/p>\n\n\n\n

\u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a3\u099f\u09bf \u09b8\u09a0\u09bf\u0995?<\/p>\n\n\n\n

(\u0995) i \u0993 ii     (\u0996) i \u0993 iii
(\u0997) ii \u0993 iii    (\u0998) i, ii \u0993 iii
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0998<\/p>\n\n\n\n

\u09e7\u09ea<\/strong>. <\/strong>\u0995\u09af\u09bc\u09c7\u0995\u099f\u09bf<\/strong> <\/strong>\u09b8\u09ae\u0995\u09cb\u09a3\u09c0<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c<\/strong> <\/strong>\u0986\u0981\u0995\u0964<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a4\u09bf\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09b8\u09ae\u0995\u09cb\u09a3<\/strong> <\/strong>\u099b\u09be\u09a1\u09bc\u09be<\/strong> <\/strong>\u0985\u09a8\u09cd\u09af<\/strong> <\/strong>\u09a6\u09c1\u0987\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u09ae\u09be\u09aa<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u098f\u09a6\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0<\/strong> <\/strong>\u09af\u09cb\u0997\u09ab\u09b2<\/strong> <\/strong>\u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc<\/strong> <\/strong>\u0995\u09b0\u0964<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a4\u09bf<\/strong> <\/strong>\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u09a4\u09bf\u09a8\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09b8\u09ae\u09b7\u09cd\u099f\u09bf<\/strong> <\/strong>\u0995\u09a4<\/strong>?<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u09ae\u09a8\u09c7\u00a0\u0995\u09b0\u09bf, ABC\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c0\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0\u00a0\u2220B=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3=900<\/sup>, DEF \u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0\u00a0\u2220E=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3=900<\/sup>\u00a0\u098f\u09ac\u0982 PQR\u00a0\u09b8\u09ae\u0995\u09cb\u09a3\u09c0\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0\u00a0\u2220Q=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3=900<\/sup>\u0964
\u098f\u0996\u09a8, ABC \u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09bf\u0964 \u09b2\u0995\u09cd\u09b7 \u0995\u09b0\u09bf \u09af\u09c7\u09a8, BC \u09b0\u09c7\u0996\u09be\u09b0 \u09b8\u09be\u09a5\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 0 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09bf\u09a4 \u09b0\u09c7\u0996\u09be \u09ae\u09bf\u09b2\u09c7 \u09af\u09be\u09af\u09bc\u0964 \u098f\u0996\u09a8 CA \u09b0\u09c7\u0996\u09be \u099a\u09be\u0981\u09a6\u09be\u09b0 45\u00b0 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b0\u09c7\u0996\u09be\u09af\u09bc \u09aa\u09a1\u09bc\u09c7\u0964 \u09b8\u09c1\u09a4\u09b0\u09be\u0982,\u00a0\u2220ACB=450<\/sup>\u0964
\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7,\u00a0\u2220BAC\u00a0\u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09b2\u09c7 450<\/sup>\u00a0\u09aa\u09be\u0993\u09af\u09bc\u09be \u09af\u09be\u09af\u09bc\u0964
\u2234ABC \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a4\u09bf\u09a8\u099f\u09bf \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf
\u2220ABC+\u2220BAC+\u2220ACB=900<\/sup>+450+<\/sup>450<\/sup>=1800<\/sup>\u0964
\u0985\u09a8\u09c1\u09b0\u09c2\u09aa\u09ad\u09be\u09ac\u09c7, DEF \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09aa\u09be\u0987,
\u2220DFE=410
<\/sup>\u2220EDF=490
<\/sup>\u2234DEF \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a4\u09bf\u09a8\u099f\u09bf \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf
\u2220DEF+\u2220DFE+\u2220EDF=900<\/sup>+410+<\/sup>490<\/sup>=1800<\/sup>\u0964
\u0985\u09a8\u09c1\u09b0\u09c2\u09aa\u09ad\u09be\u09ac\u09c7, PQR \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09aa\u09be\u0987,
\u2220QRP=520
<\/sup>\u2220QPR=380
<\/sup>\u2234PQR \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a4\u09bf\u09a8\u099f\u09bf \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf
\u2220PQR+\u2220QRP+\u2220QPR=900<\/sup>+520+<\/sup>380<\/sup>=1800<\/sup>\u0964<\/p>\n\n\n\n

\u09e7\u09eb. \u098f\u0995\u099f\u09bf \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u0986\u0981\u0995\u0964 \u098f\u09b0 \u09ac\u09be\u09b9\u09c1 \u099a\u09be\u09b0\u099f\u09bf\u09b0 \u098f\u09ac\u0982 \u0995\u09b0\u09cd\u09a3 \u09a6\u09c1\u0987\u099f\u09bf\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa\u0964 \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf\u09b0 \u0995\u09cb\u09a3 \u099a\u09be\u09b0\u099f\u09bf \u09ae\u09c7\u09aa\u09c7 \u09a4\u09be\u09a6\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u0964<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb\u0964 AB, BC, CD \u0993 AD \u0989\u09b9\u09be\u09b0 \u099a\u09be\u09b0\u099f\u09bf \u09ac\u09be\u09b9\u09c1 \u098f\u09ac\u0982 AC \u0993 BD \u0989\u09b9\u09be\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09b0\u09cd\u09a3\u0964 ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7\u09b0 AB \u09ac\u09be\u09b9\u09c1 \u09ac\u09b0\u09be\u09ac\u09b0 \u09b0\u09c1\u09b2\u09be\u09b0 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09bf\u0964 \u09b2\u0995\u09cd\u09b7\u09cd\u09af \u0995\u09b0\u09bf \u09af\u09c7\u09a8, AB \u09ac\u09be\u09b9\u09c1\u09b0 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b0\u09c1\u09b2\u09be\u09b0\u09c7\u09b0 0 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09bf\u09a4 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09b0 \u09b8\u09be\u09a5\u09c7 \u09ae\u09bf\u09b2\u09c7\u0964 \u098f\u0996\u09a8 AB \u09ac\u09be\u09b9\u09c1\u09b0 B \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b0\u09c1\u09b2\u09be\u09b0\u09c7\u09b0 3.7 \u09b8\u09c7\u09ae\u09bf \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09a6\u09be\u0997\u09c7 \u09aa\u09a1\u09bc\u09c7\u0964 \u09b8\u09c1\u09a4\u09b0\u09be\u0982 AB \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af=3.7 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n

\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7 BC, CD \u0993 AD \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09b2\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 4 \u09b8\u09c7\u09ae\u09bf, 2.5 \u09b8\u09c7\u09ae\u09bf, \u0993 3 \u09b8\u09c7\u09ae\u09bf \u09aa\u09be\u0993\u09af\u09bc\u09be \u09af\u09be\u09af\u09bc\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982 ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09be\u09b9\u09c1 \u099a\u09be\u09b0\u099f\u09bf\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998,
AB=3.7 \u09b8\u09c7\u09ae\u09bf, BC=4 \u09b8\u09c7\u09ae\u09bf, CD=2.5 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982 AD=3 \u09b8\u09c7\u09ae\u09bf\u0964
\u0986\u09ac\u09be\u09b0, ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09b0\u09cd\u09a3 \u09ae\u09c7\u09aa\u09c7 \u09aa\u09be\u0987,
AC=5 \u09b8\u09c7\u09ae\u09bf \u0993 BD=4.3 \u09b8\u09c7\u09ae\u09bf\u0964
\u098f\u0996\u09a8, ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7\u09b0\u00a0\u2220ABC\u00a0\u098f\u09b0 B \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7 \u09aa\u09be\u0987,\u00a0\u2220ABC=780<\/sup>\u0964
\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7,
\u2220BCD=790<\/sup>,\u00a0\u00a0\u2220ADC=1250<\/sup>,\u00a0\u00a0\u2220BAD=780<\/sup>\u0964<\/p>\n\n\n\n

\u2220ABC = 78\u00b0, \u2220BCD = 79\u00b0, \u2220CDA =125\u00b0 \u098f\u09ac\u0982 \u2220DAB = 78\u00b0
\u0995\u09cb\u09a3 \u099a\u09be\u09b0\u099f\u09bf \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2=78\u09e6<\/sup>+79\u09e6<\/sup>+125\u09e6<\/sup>+78\u09e6<\/sup>=360\u09e6<\/sup>\u0964<\/p>\n\n\n\n

\u09e7\u09ec<\/strong>. <\/strong>\u0985\u09a8\u09c1\u09ae\u09be\u09a8<\/strong> <\/strong>\u0995\u09b0\u09c7<\/strong> <\/strong>\u09a6\u09c1\u0987\u099f\u09bf<\/strong> <\/strong>\u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c<\/strong> <\/strong>\u0986\u0981\u0995<\/strong> <\/strong>\u09af\u09be\u09a6\u09c7\u09b0<\/strong> <\/strong>\u0995\u09cb\u09a8\u09cb<\/strong> <\/strong>\u09a6\u09c1\u0987\u099f\u09bf<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1\u09b0<\/strong> <\/strong>\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af\u0987<\/strong> <\/strong>\u09b8\u09ae\u09be\u09a8<\/strong> <\/strong>\u09a8\u09af\u09bc\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) <\/strong>\u09aa\u09cd\u09b0\u09a4\u09bf\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1<\/strong> <\/strong>\u099a\u09be\u09b0\u099f\u09bf\u09b0<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u0995\u09b0\u09cd\u09a3<\/strong> <\/strong>\u09a6\u09c1\u0987\u099f\u09bf\u09b0<\/strong> <\/strong>\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af<\/strong> <\/strong>\u09ae\u09be\u09aa<\/strong> <\/strong>\u0993<\/strong> <\/strong>\u0996\u09be\u09a4\u09be\u09af\u09bc<\/strong> <\/strong>\u09b2\u09c7\u0996\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0996<\/strong>) <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u099a\u09be\u09b0\u099f\u09bf<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa<\/strong> <\/strong>\u0995\u09b0<\/strong> <\/strong>\u098f\u09ac\u0982<\/strong> <\/strong>\u0996\u09be\u09a4\u09be\u09af\u09bc<\/strong> <\/strong>\u09b2\u09c7\u0996\u09be<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u099a\u09be\u09b0\u099f\u09bf<\/strong> <\/strong>\u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0<\/strong> <\/strong>\u09af\u09cb\u0997\u09ab\u09b2<\/strong> <\/strong>\u0989\u09ad\u09af\u09bc<\/strong> <\/strong>\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong> <\/strong>\u098f\u0995\u0987<\/strong> <\/strong>\u0995\u09bf\u09a8\u09be<\/strong> <\/strong>\u09ac\u09b2\u0964<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

(\u0995) \u099a\u09bf\u09a4\u09cd\u09b0-\u09e7 \u098f ABCD \u098f\u0995\u099f\u09bf \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u0985\u09a8\u09c1\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb \u09af\u09be\u09b0 \u099a\u09be\u09b0\u099f\u09bf \u09ac\u09be\u09b9\u09c1 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 AB, BC, CD \u0993 AD \u098f\u09ac\u0982 \u0995\u09b0\u09cd\u09a3 AC \u0993 BD\u0964
\u09b8\u09cd\u0995\u09c7\u09b2 \u09a6\u09bf\u09af\u09bc\u09c7 \u09ae\u09c7\u09aa\u09c7 \u09aa\u09be\u0993\u09af\u09bc\u09be \u0997\u09c7\u09b2,
AB = \u09e8 \u09b8\u09c7.\u09ae\u09bf., BC = \u09ea \u09b8\u09c7.\u09ae\u09bf., CD = \u09e9 \u09b8\u09c7.\u09ae\u09bf., AD = \u09e9.\u09eb \u09b8\u09c7.\u09ae\u09bf. \u098f\u09ac\u0982 \u0995\u09b0\u09cd\u09a3 AC = \u09eb \u09b8\u09c7.\u09ae\u09bf. \u0993 \u0995\u09b0\u09cd\u09a3 BD = \u09ea.\u09ee \u09b8\u09c7.\u09ae\u09bf.\u0964<\/p>\n\n\n\n

\u0986\u09ac\u09be\u09b0, \u099a\u09bf\u09a4\u09cd\u09b0-\u09e8 \u098f EFGH \u0986\u09b0\u09c7\u0995\u099f\u09bf \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u0985\u09a8\u09c1\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb, \u09af\u09be\u09b0 \u099a\u09be\u09b0\u099f\u09bf \u09ac\u09be\u09b9\u09c1 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 EF,FG, GH \u0993 EH \u098f\u09ac\u0982 \u0995\u09b0\u09cd\u09a3 FH \u0993 EG\u0964 \u09b8\u09cd\u0995\u09c7\u09b2 \u09a6\u09bf\u09af\u09bc\u09c7 \u09ae\u09c7\u09aa\u09c7 \u09aa\u09be\u0993\u09af\u09bc\u09be \u0997\u09c7\u09b2,
EF = \u09e9.\u09ea \u09b8\u09c7.\u09ae\u09bf., FG = \u09eb \u09b8\u09c7.\u09ae\u09bf., GH = \u09e8.\u09ee \u09b8\u09c7.\u09ae\u09bf., EH = \u09e9.\u09e7 \u09b8\u09c7.\u09ae\u09bf. \u098f\u09ac\u0982 \u0995\u09b0\u09cd\u09a3 EG = \u09eb.\u09e8 \u09b8\u09c7.\u09ae\u09bf. \u0993 \u0995\u09b0\u09cd\u09a3 FH = \u09ea.\u09ec \u09b8\u09c7.\u09ae\u09bf.\u0964<\/p>\n\n\n\n

(\u0996) \u099a\u09be\u0981\u09a6\u09be \u09a6\u09bf\u09af\u09bc\u09c7 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09c7 \u09aa\u09be\u0993\u09af\u09bc\u09be \u0997\u09c7\u09b2,
ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7,
\u2220ABC = \u09e7\u09e7\u09e6\u00b0, \u2220BCD = \u09ec\u09ed\u00b0, \u2220CDA = \u09ef\u09ee\u00b0
\u098f\u09ac\u0982 \u2220DAB = \u09ee\u09eb\u00b0
\u098f\u0996\u09a8, \u2220ABC + \u2220BCD + \u2220CDA + \u2220DAB
= \u09e7\u09e7\u09e6\u00b0 + \u09ec\u09ed\u00b0 + \u09ef\u09ee\u00b0 + \u09ee\u09eb\u00b0 = \u09e9\u09ec\u09e6\u00b0<\/p>\n\n\n\n

EFGH \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7,
\u2220EFG = \u09ee\u09eb\u00b0, \u2220FGH = \u09ed\u09e8\u00b0, \u2220GHE = \u09e7\u09e8\u09eb\u00b0 \u098f\u09ac\u0982 \u2220HEF = \u09ed\u09ee\u00b0
\u098f\u0996\u09a8, \u2220EFG + \u2220FGH + \u2220GHE + \u2220HEF
= \u09ee\u09eb\u00b0+ \u09ed\u09e8\u00b0 + \u09e7\u09e8\u09eb\u00b0 + \u09ed\u09ee\u00b0 = \u09e9\u09ec\u09e6\u00b0<\/p>\n\n\n\n

\u0985\u09a4\u098f\u09ac, \u0986\u09ae\u09b0\u09be \u09aa\u09be\u0987 \u0989\u09ad\u09af\u09bc \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7\u09b0 \u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf \u09e9\u09ec\u09e6\u00b0\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982 ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u0993 EFGH \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u09a6\u09c1\u0987\u099f\u09bf\u09b0 \u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u0989\u09ad\u09af\u09bc \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09e9\u09ec\u09e6\u00b0 \u0985\u09b0\u09cd\u09a5\u09be\u09ce \u09b8\u09ae\u09be\u09a8\u0964<\/p>\n\n\n\n

\u09e7\u09ed.  \u0985\u09a8\u09c1\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u098f\u0995\u099f\u09bf \u09ac\u09b0\u09cd\u0997 \u0986\u0981\u0995 \u09af\u09be\u09b0 \u09aa\u09cd\u09b0\u09a4\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 8 \u09b8\u09c7\u09ae\u09bf\u0964<\/strong><\/p>\n\n\n\n

(\u0995) \u09aa\u09cd\u09b0\u09a4\u09cd\u09af\u09c7\u0995 \u0995\u09b0\u09cd\u09a3\u09c7\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa \u098f\u09ac\u0982 \u0996\u09be\u09a4\u09be\u09af\u09bc \u09b2\u09c7\u0996\u0964<\/strong><\/p>\n\n\n\n

(\u0996) \u09ac\u09be\u09b9\u09c1\u0997\u09c1\u09b2\u09cb\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09b8\u09ae\u09c2\u09b9 \u099a\u09bf\u09b9\u09cd\u09a8\u09bf\u09a4 \u0995\u09b0\u0964 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0997\u09c1\u09b2\u09cb \u09aa\u09b0\u09cd\u09af\u09be\u09af\u09bc\u0995\u09cd\u09b0\u09ae\u09c7 \u09b8\u0982\u09af\u09c1\u0995\u09cd\u09a4 \u0995\u09b0\u0964 \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf \u0995\u09c0 \u09a7\u09b0\u09a8\u09c7\u09b0 \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u09ac\u09b2\u09c7 \u09ae\u09a8\u09c7 \u09b9\u09af\u09bc\u0964 \u098f\u09b0 \u09ac\u09be\u09b9\u09c1\u0997\u09c1\u09b2\u09cb\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa \u098f\u09ac\u0982 \u0995\u09cb\u09a8\u0997\u09c1\u09b2\u09cb \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u0964<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

(\u0995) ABCD \u098f\u0995\u099f\u09bf \u09ac\u09b0\u09cd\u0997 \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb \u09af\u09be\u09b0 \u09aa\u09cd\u09b0\u09a4\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 8 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982 AC \u0993 BD \u098f\u09b0 \u09a6\u09c1\u099f\u09bf \u0995\u09b0\u09cd\u09a3\u0964<\/p>\n\n\n\n

\u0995\u09b0\u09cd\u09a3\u09c7\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc\u0983
AC \u09ac\u09b0\u09be\u09ac\u09b0 \u09b8\u09cd\u0995\u09c7\u09b2 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09bf \u09af\u09c7\u09a8 \u09b8\u09cd\u0995\u09c7\u09b2\u09c7\u09b0 0 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09b0 \u09b8\u09be\u09a5\u09c7 \u09ae\u09bf\u09b2\u09c7\u0964 \u098f\u0996\u09a8 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09b0\u09c1\u09b2\u09be\u09b0\u09c7\u09b0 \u09ae\u09be\u09aa \u09aa\u09be\u0987 11.3 \u09b8\u09c7\u09ae\u09bf\u0964 \u0985\u09a4\u098f\u09ac, AC=11.3 \u09b8\u09c7\u09ae\u09bf\u0964
\u098f\u09ad\u09be\u09ac\u09c7, BD=11.3 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n

(\u0996)<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u09af\u09c7\u09b9\u09c7\u09a4\u09c1  \u09ac\u09b0\u09cd\u0997\u099f\u09bf\u09b0 \u09aa\u09cd\u09b0\u09a4\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 8 \u09b8\u09c7\u09ae\u09bf, \u09b8\u09c7\u09b9\u09c7\u09a4\u09c1 \u09ac\u09be\u09b9\u09c1\u0997\u09c1\u09b2\u09cb \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u09bf\u09a4 \u0995\u09b0\u09b2\u09c7 \u0996\u09a8\u09cd\u09a1\u09bf\u09a4\u09be\u0982\u09b6\u09c7\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09b9\u09ac\u09c7 4 \u09b8\u09c7\u09ae\u09bf\u0964
\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, AB , BC , CD \u0993 AD \u09ac\u09be\u09b9\u09c1\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 E, F , G \u0993 H\u0964
\u098f\u0996\u09a8,  E,F ; G,F ;  G,H; E\u0993H \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964
\u09ab\u09b2\u09c7 \u098f\u0995\u099f\u09bf \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09b9\u09b2\u09cb \u098f\u09ac\u0982 \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf \u098f\u0995\u099f\u09bf \u09ac\u09b0\u09cd\u0997 \u09ac\u09b2\u09c7 \u09ae\u09a8\u09c7 \u09b9\u09af\u09bc\u0964
EFGH \u09ac\u09b0\u09cd\u0997\u09c7\u09b0 \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc\u0983
EF \u09ac\u09be\u09b9\u09c1 \u09ac\u09b0\u09be\u09ac\u09b0 \u09b0\u09c1\u09b2\u09be\u09b0 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7 \u09aa\u09be\u0987,
EF= 5.6 \u09b8\u09c7\u09ae\u09bf\u0964
\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7, FG=5.6 \u09b8\u09c7\u09ae\u09bf, GH=5.6 \u09b8\u09c7\u09ae\u09bf \u0993 EH=5.6 \u09b8\u09c7\u09ae\u09bf\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982, EFGH \u09ac\u09b0\u09cd\u0997\u09c7\u09b0 \u09aa\u09cd\u09b0\u09a4\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 5.6 \u09b8\u09c7\u09ae\u09bf\u0964
EFGH \u09ac\u09b0\u09cd\u0997\u09c7\u09b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc\u0983
\u2220EFG \u098f\u09b0 F \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b8\u09cd\u09a5\u09be\u09aa\u09a3 \u0995\u09b0\u09bf\u0964 \u09b2\u0995\u09cd\u09b7 \u0995\u09b0\u09bf \u09af\u09c7\u09a8, EF \u09b0\u09c7\u0996\u09be\u09b0 \u09b8\u09be\u09a5\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 0 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b0\u09c7\u0996\u09be \u09ae\u09bf\u09b2\u09c7 \u09af\u09be\u09af\u09bc\u0964 \u098f\u0996\u09a8 FG \u09b0\u09c7\u0996\u09be \u099a\u09be\u0981\u09a6\u09be\u09b0 90 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b0\u09c7\u0996\u09be\u09af\u09bc \u09aa\u09a1\u09bc\u09c7\u0964 \u09b8\u09c1\u09a4\u09b0\u09be\u0982 \u2220EFG=900<\/sup>\u0964
\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7, \u2220FGH, \u2220GHE, \u2220HEF \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 900<\/sup> \u09aa\u09be\u0993\u09af\u09bc\u09be \u09af\u09be\u09af\u09bc\u0964<\/p>\n\n\n\n

\u09e7\u09ee. \u0985\u09a8\u09c1\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u098f\u0995\u099f\u09bf \u09b8\u09be\u09ae\u09a8\u09cd\u09a4\u09b0\u09bf\u0995 \u0986\u0981\u0995 \u09af\u09be\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 4 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u09bf\u0982 \u09aa\u09be\u09b6\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 3 \u09b8\u09c7\u09ae\u09bf\u0964 \u098f\u09a6\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 \u09a6\u09c1\u0987\u099f\u09bf\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa \u098f\u09ac\u0982 \u09aa\u09cd\u09b0\u09a4\u09cd\u09af\u09c7\u0995 \u099c\u09cb\u09a1\u09bc\u09be \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u0964 \u09b8\u09be\u09ae\u09a8\u09cd\u09a4\u09b0\u09bf\u0995\u099f\u09bf\u09b0 \u0995\u09b0\u09cd\u09a3 \u09a6\u09c1\u0987\u099f\u09bf \u0986\u0981\u0995\u0964 \u098f\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u0995\u09b0\u09cd\u09a3\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u099a\u09be\u09b0\u099f\u09bf \u0996\u09a8\u09cd\u09a1\u09bf\u09a4\u09be\u0982\u09b6\u09c7\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa\u0964<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u0985\u09a8\u09c1\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u098f\u0995\u099f\u09bf \u09b8\u09be\u09ae\u09a8\u09cd\u09a4\u09b0\u09bf\u0995 ABCD \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb \u09af\u09be\u09b0 AB \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 4 \u09b8\u09c7\u09ae\u09bf \u0993 AD \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af 3 \u09b8\u09c7\u09ae\u09bf\u0964 DC \u0993 BC \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

BC \u09ac\u09be\u09b9\u09c1 \u09ac\u09b0\u09be\u09ac\u09b0 \u09b0\u09c1\u09b2\u09be\u09b0 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09c7 \u09aa\u09be\u0987, BC =3 \u09b8\u09c7\u09ae\u09bf \u0964
\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7 \u09aa\u09be\u0987, CD=4 \u09b8\u09c7\u09ae\u09bf\u0964
\u0995\u09cb\u09a3\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc\u0983
\u2220ABC\u00a0\u098f\u09b0\u00a0B\u00a0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099a\u09be\u0981\u09a6\u09be\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7 \u09aa\u09be\u0987\u00a0\u2220ABC=1100
<\/sup>\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7,\u00a0\u2220ABC\u00a0\u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4\u00a0\u00a0\u2220ADC=1100
<\/sup>\u0985\u09a8\u09c1\u09b0\u09c1\u09aa\u09ad\u09be\u09ac\u09c7,\u00a0\u2220BAD=700<\/sup>,\u00a0\u00a0\u2220BAD\u00a0\u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4\u00a0\u2220BCD=700
<\/sup>\u0995\u09b0\u09cd\u09a3\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u0996\u09a8\u09cd\u09a1\u09bf\u09a4\u09be\u0982\u09b6\u09c7\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc\u0983<\/p>\n\n\n\n

\u09b8\u09be\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09bf\u0995\u09c7\u09b0 \u0995\u09b0\u09cd\u09a3 \u09a6\u09c1\u099f\u09bf AC = 4.1 \u09b8\u09c7.\u09ae\u09bf. \u098f\u09ac\u0982 BD = 5.8 \u09b8\u09c7.\u09ae\u09bf.\u0964
\u098f\u0996\u09be\u09a8\u09c7, \u0995\u09b0\u09cd\u09a3\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u099b\u09c7\u09a6 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 O\u0964<\/p>\n\n\n\n

\u09af\u09c7\u09b9\u09c7\u09a4\u09c1 \u09b8\u09be\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09bf\u0995\u09c7\u09b0 \u0995\u09b0\u09cd\u09a3\u09a6\u09cd\u09ac\u09af\u09bc \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0\u0995\u09c7 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a3\u09cd\u09a1\u09bf\u09a4 \u0995\u09b0\u09c7<\/p>\n\n\n\n

\u0995\u09b0\u09cd\u09a3\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0\u00a0\u00a0\u099a\u09be\u09b0\u099f\u09bf \u0996\u09a8\u09cd\u09a1\u09bf\u09a4\u09be\u0982\u09b6 AO, OC, OB \u098f\u09ac\u0982 OD \u098f\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09ae\u09be\u09aa\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964
\u2234 AO = CO = AC \u00f7 2 = (4.1 \u00f7 2) \u09b8\u09c7.\u09ae\u09bf. = 2.05 \u09b8\u09c7.\u09ae\u09bf.
\u098f\u09ac\u0982 BO = BO = BD \u00f7 2 = (5.8 \u00f7 2) \u09b8\u09c7.\u09ae\u09bf. = 2.9 \u09b8\u09c7.\u09ae\u09bf.<\/p>\n\n\n\n

\u09e7\u09ef. \u099a\u09bf\u09a4\u09cd\u09b0\u09c7 AB II CD \u098f\u09ac\u0982  EF II GH<\/strong><\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

(\u0995) \u0995\u09be\u09b0\u09a3\u09b8\u09b9 PQRS \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf\u09b0 \u09a8\u09be\u09ae \u09b2\u09c7\u0996\u0964<\/strong><\/p>\n\n\n\n

(<\/strong>\u0996) \u099a\u09bf\u09a4\u09cd\u09b0 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u09b0\u099f\u09bf \u0995\u09cb\u09a3 \u09a8\u09bf\u09af\u09bc\u09c7 \u098f\u09a6\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3, \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09cb\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u0964
<\/strong>(\u0997) \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, <\/strong>\u2220APE=\u2220DRH<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

(\u0995) \u0995\u09be\u09b0\u09a3\u09b8\u09b9 PQRS \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf\u09b0 \u09a8\u09be\u09ae \u09b2\u09c7\u0996\u0964
(\u0996) \u099a\u09bf\u09a4\u09cd\u09b0 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u09b0\u099f\u09bf \u0995\u09cb\u09a3 \u09a8\u09bf\u09af\u09bc\u09c7 \u098f\u09a6\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3, \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09cb\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u0964
(\u0997) \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0 \u09af\u09c7, \u2220APE = \u2220DRH.<\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8 :
(\u0995) \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7, AB \u0965 CD
\u2234 PS \u0965 QR [\u2235 PS \u0993 QR \u09b0\u09c7\u0996\u09be\u0982\u09b6\u09a6\u09cd\u09ac\u09af\u09bc \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 AB \u0993 CD \u09b0\u09c7\u0996\u09be\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u0985\u0982\u09b6 \u09ac\u09bf\u09b6\u09c7\u09b7]<\/p>\n\n\n\n

\u0986\u09ac\u09be\u09b0, EF \u0965 GH
\u2234 PQ \u0965 RS [\u2235 PQ \u0993 RS \u09b0\u09c7\u0996\u09be\u0982\u09b6\u09a6\u09cd\u09ac\u09af\u09bc \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 EF \u0993 GH \u09b0\u09c7\u0996\u09be\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u0985\u0982\u09b6 \u09ac\u09bf\u09b6\u09c7\u09b7]<\/p>\n\n\n\n

\u09b8\u09c1\u09a4\u09b0\u09be\u0982 \u09a6\u09c7\u0996\u09be \u09af\u09be\u099a\u09cd\u099b\u09c7 \u09af\u09c7, PQRS \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u099f\u09bf\u09b0
\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1\u0997\u09c1\u09b2\u09cb \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 \u09b8\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09be\u09b2\u0964
\u2234 PQRS \u098f\u0995\u099f\u09bf \u09b8\u09be\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09bf\u0995\u0964<\/p>\n\n\n\n

(\u0996) \u099a\u09bf\u09a4\u09cd\u09b0 \u09a5\u09c7\u0995\u09c7 \u099a\u09be\u09b0\u099f\u09bf \u0995\u09cb\u09a3 \u09b9\u09b2\u09cb :
\u2220APQ, \u2220QPS, \u2220PSR, \u2220QRS,
\u2220APQ \u098f\u09b0 \u099c\u09a8\u09cd\u09af :<\/p>\n\n\n\n

\u2220QPE \u098f\u0995 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3 [\u099a\u09bf\u09a4\u09cd\u09b0\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7]
\u2234 \u2220APQ + \u2220APE = \u09b8\u09b0\u09b2\u0995\u09cb\u09a3 = \u09e7\u09ee\u09e6\u00b0
\u09ac\u09be, \u2220APE = \u09e7\u09ee\u09e6\u00b0 \u2013 \u2220APQ
\u2234 \u2220APQ \u098f\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 \u2220APE<\/p>\n\n\n\n

\u0986\u09ac\u09be\u09b0, AB \u0965 CD \u098f\u09ac\u0982 EF \u09a4\u09be\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u0995
\u2234 \u2220APQ = \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u2220PQR
\u0985\u09a8\u09c1\u09b0\u09c2\u09aa\u09ad\u09be\u09ac\u09c7, \u2220QPS \u098f\u09b0 \u099c\u09a8\u09cd\u09af :
\u2220QPE \u098f\u0995 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3
\u2234 \u2220QPS \u098f\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 \u2220EPS<\/p>\n\n\n\n

\u0986\u09ac\u09be\u09b0, AB \u0965 CD \u098f\u09ac\u0982 EF \u09a4\u09be\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u0995
\u2220QPS = \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u2220PQC
\u2220PSR \u098f\u09b0 \u099c\u09a8\u09cd\u09af :
\u2220PSB \u098f\u0995 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3
\u2234 \u2220PSR \u098f\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 \u2220BSR<\/p>\n\n\n\n

\u0986\u09ac\u09be\u09b0, AB \u0965 CD \u098f\u09ac\u0982 GH \u09a4\u09be\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u0995\u0964
\u2234 \u2220PSR = \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u2220SRD.
\u2220QRS \u098f\u09b0 \u099c\u09a8\u09cd\u09af :
\u2220SRH \u098f\u0995 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3
\u2234 \u2220QRS \u098f\u09b0 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3 \u2220QRH
AB \u0965 CD \u098f\u09ac\u0982 GH \u09a4\u09be\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u0995\u0964
\u2220QRS = \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u2220RSB.<\/p>\n\n\n\n

(\u0997) \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, \u2220APE = \u2220DRH
\u09aa\u09cd\u09b0\u09ae\u09be\u09a3 : \u099a\u09bf\u09a4\u09cd\u09b0 \u09b9\u09a4\u09c7, PQRS \u09b8\u09be\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09bf\u0995\u09c7\u09b0
\u2220QPS = \u2220QRS (\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3)
\u0986\u09ac\u09be\u09b0, \u2220QPS = \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u2220APE
\u098f\u09ac\u0982 \u2220QRS = \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u2220DRH
\u0995\u09bf\u09a8\u09cd\u09a4\u09c1, \u2220QPS = \u2220QRS
\u2234 \u2220APE = \u2220DRH. (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n

\u09e8\u09e6. AB \u0993 CD \u09b0\u09c7\u0996\u09be\u09a6\u09cd\u09ac\u09af\u09bc O \u09ac\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964<\/strong><\/p>\n\n\n\n

\u0995. \u0989\u09aa\u09b0\u09cb\u0995\u09cd\u09a4 \u09a4\u09a5\u09cd\u09af\u09c7\u09b0 \u09ad\u09bf\u09a4\u09cd\u09a4\u09bf\u09a4\u09c7 \u098f\u0995\u099f\u09bf \u099a\u09bf\u09a4\u09cd\u09b0 \u0985\u0999\u09cd\u0995\u09a8 \u0995\u09b0\u0964<\/strong><\/p>\n\n\n\n

\u0996. \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 \u09b8\u09ae\u09be\u09a8\u0964
\u0997.\u00a0\u2220AOC=(4x-16\u00b0<\/sup>)\u00a0\u098f\u09ac\u0982\u00a0\u2220BOC=2(x+20\u00b0<\/sup>)\u00a0\u09b9\u09b2\u09c7 x \u098f\u09b0 \u09ae\u09be\u09a8 \u0995\u09a4?<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

(\u0995)<\/p>\n\n\n\n

\u0985\u0999\u09cd\u0995\u09bf\u09a4 \u099a\u09bf\u09a4\u09cd\u09b0\u0983<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

(\u0996)<\/p>\n\n\n\n

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, AB \u0993 CD \u09b0\u09c7\u0996\u09be\u09a6\u09cd\u09ac\u09af\u09bc \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 O \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u099b\u09c7\u0964
\u09ab\u09b2\u09c7 O \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u2220AOC,  \u2220COB,  \u2220BOD,  \u2220AOD \u0995\u09cb\u09a3 \u0989\u09ce\u09aa\u09a8\u09cd\u09a8  \u09b9\u09af\u09bc\u09c7\u099b\u09c7\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7,
\u2220AOC=\u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa\u2220BOD \u098f\u09ac\u0982 \u2220COB=\u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa\u2220AOD\u0964
OA \u09b0\u09b6\u09cd\u09ae\u09bf\u09b0 O \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 CD \u09b0\u09c7\u0996\u09be \u09ae\u09bf\u09b2\u09bf\u09a4 \u09b9\u09af\u09bc\u09c7\u099b\u09c7\u0964
\u2234\u2220AOC+\u2220AOD=\u09e7 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3=\u09e8 \u09b8\u09ae\u0995\u09cb\u09a3\u0964
\u0986\u09ac\u09be\u09b0, OD \u09b0\u09b6\u09cd\u09ae\u09bf\u09b0 O \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 AB \u09b0\u09c7\u0996\u09be \u09ae\u09bf\u09b2\u09bf\u09a4 \u09b9\u09af\u09bc\u09c7\u099b\u09c7\u0964
\u2234\u2220AOD+\u2220BOD=\u09e7 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3=\u09e8 \u09b8\u09ae\u0995\u09cb\u09a3\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982, \u2220AOC+\u2220AOD=\u2220AOD+\u2220BOD
\u2234\u2220AOC=\u2220BOD
\u0985\u09a8\u09c1\u09b0\u09c1\u09aa\u09ad\u09be\u09ac\u09c7, \u2220COB=\u2220AOD [\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4]<\/p>\n\n\n\n

(\u0997)<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7, \u2220AOC=(4x-160<\/sup>) \u098f\u09ac\u0982 \u2220BOC=2(x+200<\/sup>)
\u09b6\u09b0\u09cd\u09a4\u09ae\u09a4\u09c7,
\u2220AOC+\u2220BOC=\u2220AOB
\u09ac\u09be, 4x-160<\/sup>+2(x+200<\/sup>)=1800
<\/sup>\u09ac\u09be, 4x-160<\/sup>+2x+400<\/sup>=1800
<\/sup>\u09ac\u09be, 6x=1800<\/sup>-400<\/sup>+160
<\/sup>\u09ac\u09be, 6x=1560
<\/sup>\u09ac\u09be, x=260<\/sup><\/p>\n","protected":false},"excerpt":{"rendered":"

\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983 \u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u09ec\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math Book Solution | Chapter 06 : Basic concepts of geometry | Online Solution \u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 : \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c, \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c \u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 \u098f\u09b0 \u09b8\u0995\u09b2 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u0989\u09a4\u09cd\u09a4\u09b0 \u098f\u0996\u09be\u09a8\u09c7 \u09b0\u09df\u09c7\u099b\u09c7\u0964 \u09ec\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf […]<\/p>\n","protected":false},"author":1,"featured_media":3760,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[28],"tags":[29,30],"class_list":["post-4202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-class-six-06","tag-class-6","tag-class-six"],"yoast_head":"\n\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD<\/title>\n<meta name=\"description\" content=\"\u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math Book.. Solution ..Chapter 06 : Basic concepts of geometry \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0\u09b0 \u09b8\u09ae\u09be\u09a7\u09be\u09a8..\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD\" \/>\n<meta property=\"og:description\" content=\"\u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math Book.. Solution ..Chapter 06 : Basic concepts of geometry \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0\u09b0 \u09b8\u09ae\u09be\u09a7\u09be\u09a8..\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Study Zone BD\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/studyzonebdcom\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/studyzonebdcom\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-23T19:47:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-23T20:30:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/09\/Class-six-6-math-book-solution-chapter-1-lesson-1.1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"StudyZone BD\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@StudyZoneBD_com\" \/>\n<meta name=\"twitter:site\" content=\"@StudyZoneBD_com\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"StudyZone BD\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"20 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/\"},\"author\":{\"name\":\"StudyZone BD\",\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/#\\\/schema\\\/person\\\/eb47b9e07c0f27fa4d114357c2eda1e2\"},\"headline\":\"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\",\"datePublished\":\"2022-09-23T19:47:17+00:00\",\"dateModified\":\"2022-09-23T20:30:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/\"},\"wordCount\":1622,\"publisher\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/wp-content\\\/uploads\\\/2022\\\/09\\\/Class-six-6-math-book-solution-chapter-1-lesson-1.1.jpg\",\"keywords\":[\"Class 6\",\"Class Six\"],\"articleSection\":[\"Class Six (06)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/\",\"url\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/\",\"name\":\"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/class-six-chapter-06-lesson-6-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.studyzonebd.com\\\/math\\\/wp-content\\\/uploads\\\/2022\\\/09\\\/Class-six-6-math-book-solution-chapter-1-lesson-1.1.jpg\",\"datePublished\":\"2022-09-23T19:47:17+00:00\",\"dateModified\":\"2022-09-23T20:30:55+00:00\",\"description\":\"\u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math Book.. 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Solution ..Chapter 06 : Basic concepts of geometry \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0\u09b0 \u09b8\u09ae\u09be\u09a7\u09be\u09a8..","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/","og_locale":"en_US","og_type":"article","og_title":"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD","og_description":"\u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math Book.. Solution ..Chapter 06 : Basic concepts of geometry \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0\u09b0 \u09b8\u09ae\u09be\u09a7\u09be\u09a8..","og_url":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/","og_site_name":"Study Zone BD","article_publisher":"https:\/\/www.facebook.com\/studyzonebdcom\/","article_author":"https:\/\/www.facebook.com\/studyzonebdcom\/","article_published_time":"2022-09-23T19:47:17+00:00","article_modified_time":"2022-09-23T20:30:55+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/09\/Class-six-6-math-book-solution-chapter-1-lesson-1.1.jpg","type":"image\/jpeg"}],"author":"StudyZone BD","twitter_card":"summary_large_image","twitter_creator":"@StudyZoneBD_com","twitter_site":"@StudyZoneBD_com","twitter_misc":{"Written by":"StudyZone BD","Est. reading time":"20 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/#article","isPartOf":{"@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/"},"author":{"name":"StudyZone BD","@id":"https:\/\/www.studyzonebd.com\/math\/#\/schema\/person\/eb47b9e07c0f27fa4d114357c2eda1e2"},"headline":"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf","datePublished":"2022-09-23T19:47:17+00:00","dateModified":"2022-09-23T20:30:55+00:00","mainEntityOfPage":{"@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/"},"wordCount":1622,"publisher":{"@id":"https:\/\/www.studyzonebd.com\/math\/#organization"},"image":{"@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/#primaryimage"},"thumbnailUrl":"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/09\/Class-six-6-math-book-solution-chapter-1-lesson-1.1.jpg","keywords":["Class 6","Class Six"],"articleSection":["Class Six (06)"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/","url":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/","name":"\u0985\u09a7\u09cd\u09af\u09be\u09df \u09ec\u09b7\u09cd\u09a0\u0983\u00a0\u099c\u09cd\u09af\u09be\u09ae\u09bf\u09a4\u09bf\u09b0 \u09ae\u09cc\u09b2\u09bf\u0995 \u09a7\u09be\u09b0\u09a3\u09be | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ec.\u09e8 | \u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD","isPartOf":{"@id":"https:\/\/www.studyzonebd.com\/math\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/#primaryimage"},"image":{"@id":"https:\/\/www.studyzonebd.com\/math\/class-six-chapter-06-lesson-6-2\/#primaryimage"},"thumbnailUrl":"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/09\/Class-six-6-math-book-solution-chapter-1-lesson-1.1.jpg","datePublished":"2022-09-23T19:47:17+00:00","dateModified":"2022-09-23T20:30:55+00:00","description":"\u09b7\u09b7\u09cd\u09a0 \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Six (06) Math Book.. 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