{"id":4687,"date":"2022-09-26T14:32:36","date_gmt":"2022-09-26T14:32:36","guid":{"rendered":"https:\/\/www.studyzonebd.com\/math\/?p=4687"},"modified":"2022-09-26T15:15:45","modified_gmt":"2022-09-26T15:15:45","slug":"class-7-chapter-9-lesson-9-3","status":"publish","type":"post","link":"https:\/\/www.studyzonebd.com\/math\/class-7-chapter-9-lesson-9-3\/","title":{"rendered":"\u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9 | \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf"},"content":{"rendered":"\n

\u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u09ed\u09ae \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 Seven (07) Math <\/a>Book Solution | Chapter <\/a>09 : Triangles | Class 7 math book Online Solution in bangladesh (bd)<\/p>\n\n\n\n

\u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9: \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u0985\u0999\u09cd\u0995\u09a8<\/h4>\n\n\n\n

\u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9 \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 \u09ed\u09ae \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

\u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/strong><\/span><\/h4>\n\n\n\n

\u09e7<\/strong>. <\/strong>\u0995\u09cb\u09a8\u09cb<\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong>\u09a6\u09c1\u0987\u099f\u09bf<\/strong>\u09ac\u09be\u09b9\u09c1<\/strong>\u098f\u09ac\u0982<\/strong>\u098f\u09a6\u09c7\u09b0<\/strong>\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4<\/strong>\u0995\u09cb\u09a3<\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong>\u09a5\u09be\u0995\u09b2\u09c7<\/strong>, <\/strong>\u09b8\u09b0\u09cd\u09ac\u09be\u09a7\u09bf\u0995<\/strong>\u0995\u09af\u09bc\u099f\u09bf<\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c<\/strong>\u0986\u0981\u0995\u09be<\/strong>\u09af\u09be\u09ac\u09c7<\/strong>?<\/strong><\/p>\n\n\n\n

\u0995. 1    \u0996. 2    \u0997. 3     \u0998. 4 
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0996<\/a><\/p>\n\n\n\n

\u09e8<\/strong>. <\/strong>\u0995\u09cb\u09a8<\/strong>\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7<\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c<\/strong>\u0986\u0981\u0995\u09be<\/strong>\u09b8\u09ae\u09cd\u09ad\u09ac<\/strong>\u09af\u0996\u09a8<\/strong>\u09a4\u09bf\u09a8\u09bf\u099f\u09bf<\/strong>\u09ac\u09be\u09b9\u09c1\u09b0<\/strong>\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af<\/strong>–<\/strong><\/p>\n\n\n\n

\u0995. 1 \u09b8\u09c7\u09ae\u09bf, 2 \u09b8\u09c7\u09ae\u09bf, 3 \u09b8\u09c7\u09ae\u09bf     \u0996. 3 \u09b8\u09c7\u09ae\u09bf, 4 \u09b8\u09c7\u09ae\u09bf, 5 \u09b8\u09c7\u09ae\u09bf 
\u0997. 2 \u09b8\u09c7\u09ae\u09bf, 4 \u09b8\u09c7\u09ae\u09bf, 6 \u09b8\u09c7\u09ae\u09bf      \u0998. 3 \u09b8\u09c7\u09ae\u09bf, 4 \u09b8\u09c7\u09ae\u09bf, 7 \u09b8\u09c7\u09ae\u09bf 
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0996<\/p>\n\n\n\n

\u09e9<\/strong>. <\/strong>\u09a8\u09bf\u099a\u09c7\u09b0<\/strong> <\/strong>\u09a4\u09a5\u09cd\u09af\u0997\u09c1\u09b2\u09cb<\/strong> <\/strong>\u09aa\u09a1\u09bc\u0983<\/strong><\/strong><\/p>\n\n\n\n

(i). \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09be\u09b9\u09c1 \u098f\u09ac\u0982 \u09a4\u09be\u09a6\u09c7\u09b0 \u0985\u09a8\u09cd\u09a4\u09b0\u09cd\u09ad\u09c1\u0995\u09cd\u09a4 \u0995\u09cb\u09a3 \u09a6\u09c7\u0993\u09af\u09bc\u09be \u09a5\u09be\u0995\u09b2\u09c7, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09be \u09af\u09be\u09af\u09bc\u0964
(ii). \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u09ac\u09be\u09b9\u09c1 \u0985\u09aa\u09c7\u0995\u09cd\u09b7\u09be \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0 \u09b9\u09b2\u09c7, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09be \u09af\u09be\u09af\u09bc\u0964
(iii). \u0995\u09cb\u09a8\u09cb \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u098f\u0995\u09be\u09a7\u09bf\u0995 \u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3 \u09a5\u09be\u0995\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964<\/p>\n\n\n\n

\u0989\u09aa\u09b0\u09c7\u09b0<\/strong> <\/strong>\u09a4\u09a5\u09cd\u09af<\/strong> <\/strong>\u0985\u09a8\u09c1\u09b8\u09be\u09b0\u09c7<\/strong> <\/strong>\u09a8\u09bf\u099a\u09c7\u09b0<\/strong> <\/strong>\u0995\u09cb\u09a8\u099f\u09bf<\/strong> <\/strong>\u09b8\u09a0\u09bf\u0995<\/strong>?<\/strong><\/p>\n\n\n\n

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

\u09ea<\/strong>. <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1<\/strong> <\/strong>\u09a4\u09bf\u09a8\u099f\u09bf\u09b0<\/strong> <\/strong>\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af\u09c7\u09b0<\/strong> <\/strong>\u09b8\u09ae\u09b7\u09cd\u099f\u09bf\u0995\u09c7<\/strong> <\/strong>\u0995\u09bf<\/strong> <\/strong>\u09ac\u09b2\u09c7<\/strong>?<\/strong><\/p>\n\n\n\n

\u0995. \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09ab\u09b2     \u0996. \u0986\u09af\u09bc\u09a4\u09a8 
\u0997. \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af             \u0998. \u09aa\u09b0\u09bf\u09b8\u09c0\u09ae\u09be 
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0998<\/p>\n\n\n\n

\u09eb<\/strong>. <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u0985\u09a8\u09cd\u09a4\u0983\u09b8\u09cd\u09a5<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u0995\u09af\u09bc\u099f\u09bf<\/strong>?<\/strong><\/p>\n\n\n\n

\u0995. 1\u099f\u09bf     \u0996. 2\u099f\u09bf     \u0997. 3\u099f\u09bf     \u0998.  4\u099f\u09bf 
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09ec<\/strong>. <\/strong>\u09b8\u09ae\u09ac\u09be\u09b9\u09c1<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a4\u09cd\u09af\u09c7\u0995\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u0995\u09a4<\/strong> <\/strong>\u09a1\u09bf\u0997\u09cd\u09b0\u09bf<\/strong>?<\/strong><\/p>\n\n\n\n

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

\u09ed<\/strong>. <\/strong>\u098f\u0995\u099f\u09bf<\/strong> <\/strong>\u09b8\u09ae\u0995\u09cb\u09a3\u09c0<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u098f\u0995\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u09b9\u09b2\u09c7<\/strong> <\/strong>\u0985\u09aa\u09b0<\/strong> <\/strong>\u0995\u09cb\u09a3\u099f\u09bf<\/strong> <\/strong>\u0995\u09a4<\/strong> <\/strong>\u09a1\u09bf\u0997\u09cd\u09b0\u09c0<\/strong>?<\/strong><\/p>\n\n\n\n

\u0995. 300    <\/sup> \u0996. 600    <\/sup> \u0997. 900    <\/sup> \u0998. 1800
<\/sup>\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0995<\/p>\n\n\n\n

\u09a8\u09bf\u099a\u09c7\u09b0<\/strong> <\/strong>\u099a\u09bf\u09a4\u09cd\u09b0<\/strong> <\/strong>\u0985\u09a8\u09c1\u09b8\u09be\u09b0\u09c7<\/strong> <\/strong>\u09ee<\/strong>–<\/strong>\u09ef<\/strong> <\/strong>\u09a8\u09ae\u09cd\u09ac\u09b0<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09c7\u09b0<\/strong> <\/strong>\u0989\u09a4\u09cd\u09a4\u09b0<\/strong> <\/strong>\u09a6\u09be\u0993\u0983<\/strong><\/strong><\/p>\n\n\n\n

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

\u09ee<\/strong>. C <\/strong>\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7<\/strong> BA <\/strong>\u09b0\u09c7\u0996\u09be\u09b0<\/strong> <\/strong>\u09b8\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09be\u09b2<\/strong> <\/strong>\u09b0\u09c7\u0996\u09be<\/strong> <\/strong>\u0986\u0981\u0995\u09a4\u09c7<\/strong> <\/strong>\u09b9\u09b2\u09c7<\/strong>, <\/strong>\u0995\u09cb\u09a8<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09b8\u09ae\u09be\u09a8<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u0986\u0981\u0995\u09a4\u09c7<\/strong> <\/strong>\u09b9\u09ac\u09c7<\/strong>?<\/strong><\/p>\n\n\n\n

\u0995. \u2220ABC     \u0996. \u2220ACB   \u0997. \u2220BAC     \u0998. CAD   
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09ef.\u00a0\u2220CAD\u00a0\u098f\u09b0\u00a0\u09b8\u09ae\u09be\u09a8\u00a0\u09a8\u09bf\u099a\u09c7\u09b0\u00a0\u0995\u09cb\u09a8\u099f\u09bf?<\/strong><\/a><\/a><\/a><\/a><\/a><\/p>\n\n\n\n

\u0995. \u2220BAC+\u2220ACB      \u0996. \u2220ABC+\u2220ACB    
\u0997. \u2220ABC+\u2220ACB+\u2220BAC    \u0998. \u2220ABC+\u2220BAC 
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0996<\/p>\n\n\n\n

\u09e7\u09e6<\/strong>. <\/strong>\u098f\u0995\u099f\u09bf<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u09a4\u09bf\u09a8\u099f\u09bf<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1\u09b0<\/strong> <\/strong>\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af<\/strong> <\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong> <\/strong>\u0986\u099b\u09c7\u0964<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf<\/strong> <\/strong>\u0986\u0981\u0995\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 3 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 4 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 6 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>  <\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a4\u09bf\u09a8\u099f\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af a=3 \u09b8\u09c7\u09ae\u09bf, b=4 \u09b8\u09c7\u09ae\u09bf \u0993 c=6 \u09b8\u09c7\u09ae\u09bf \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/strong><\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 a \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 BC \u0995\u09c7\u099f\u09c7 \u09a8\u09c7\u0987\u0964
(\u09e8) B \u0993 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0995\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u0995\u09b0\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 c \u0993 b \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7 \u09a8\u09bf\u09af\u09bc\u09c7 BC \u098f\u09b0 \u098f\u0995\u0987 \u09aa\u09be\u09b0\u09cd\u09b6\u09cd\u09ac\u09c7 \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09c3\u09a4\u09cd\u09a4\u099a\u09be\u09aa \u0986\u0981\u0995\u09bf\u0964 \u09ac\u09c3\u09a4\u09cd\u09a4\u099a\u09be\u09aa \u09a6\u09c1\u0987\u099f\u09bf \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964
(\u09e9) A, B \u098f\u09ac\u0982 A, C \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964
\u09a4\u09be\u09b9\u09b2\u09c7 \u25b3ABC \u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u25b3ABC-\u098f AB=c, BC=a \u098f\u09ac\u0982 AC=b.<\/p>\n\n\n\n

(<\/strong>\u0996<\/strong>) 3.5 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>,  4.7 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>,  5.6 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong><\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a4\u09bf\u09a8\u099f\u09bf \u09ac\u09be\u09b9\u09c1\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af z=3.5 \u09b8\u09c7\u09ae\u09bf, y=4.7 \u09b8\u09c7\u09ae\u09bf \u0993 x=5.6 \u09b8\u09c7\u09ae\u09bf \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/strong><\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 z \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 BC \u0995\u09c7\u099f\u09c7 \u09a8\u09c7\u0987\u0964<\/p>\n\n\n\n

(\u09e8) B \u0993 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0995\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u0995\u09b0\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 x \u0993 y \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7 \u09a8\u09bf\u09af\u09bc\u09c7 BC \u098f\u09b0 \u098f\u0995\u0987 \u09aa\u09be\u09b0\u09cd\u09b6\u09cd\u09ac\u09c7 \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09c3\u09a4\u09cd\u09a4\u099a\u09be\u09aa \u0986\u0981\u0995\u09bf\u0964 \u09ac\u09c3\u09a4\u09cd\u09a4\u099a\u09be\u09aa \u09a6\u09c1\u0987\u099f\u09bf \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964<\/p>\n\n\n\n

(\u09e9) A, B \u098f\u09ac\u0982 A, C \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n

\u09a4\u09be\u09b9\u09b2\u09c7 \u25b3ABC \u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964<\/p>\n\n\n\n

\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u25b3ABC-\u098f AB=y, BC=z \u098f\u09ac\u0982 AC=x.<\/p>\n\n\n\n

\u09e7\u09e7<\/strong>. <\/strong>\u098f\u0995\u099f\u09bf<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u09a6\u09c1\u0987\u099f\u09bf<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1<\/strong> <\/strong>\u0993<\/strong> <\/strong>\u098f\u09a6\u09c7\u09b0<\/strong> <\/strong>\u0985\u09a8\u09cd\u09a4\u09b0\u09cd\u09ad\u09c1\u0995\u09cd\u09a4<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong> <\/strong>\u0986\u099b\u09c7\u0964<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf<\/strong> <\/strong>\u0986\u0981\u0995\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 3 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 4 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 600<\/sup><\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09be\u09b9\u09c1 a \u0993 b \u098f\u09ac\u0982 \u098f\u09a6\u09c7\u09b0 \u0985\u09a8\u09cd\u09a4\u09b0\u09cd\u09ad\u09c1\u0995\u09cd\u09a4 \u0995\u09cb\u09a3 \u2220x=600<\/sup> \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/strong><\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 a \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 BC \u09a8\u09bf\u0987\u0964<\/p>\n\n\n\n

(\u09e8) BC \u09b0\u09c7\u0996\u09be\u0982\u09b6\u09c7\u09b0 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u2220x \u098f\u09b0 \u09b8\u09ae\u09be\u09a8  \u2220BCE \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

(\u09e9) \u098f\u0996\u09a8 CE \u09b0\u09c7\u0996\u09be\u0982\u09b6 \u09a5\u09c7\u0995\u09c7 b \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 CA \u0985\u0982\u09b6 \u0995\u09c7\u099f\u09c7 \u09a8\u09bf\u0987\u0964<\/p>\n\n\n\n

(\u09ea) A, B \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n

\u09a4\u09be\u09b9\u09b2\u09c7, \u25b3ABC -\u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964<\/p>\n\n\n\n

\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u25b3ABC-\u098f BC=a=3 \u09b8\u09c7\u09ae\u09bf, AC=b=4 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982  \u2220ACB=\u2220x=600<\/sup><\/p>\n\n\n\n

(<\/strong>\u0996<\/strong>) 3.8 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 4.7 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 450<\/sup><\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09be\u09b9\u09c1 a=3.8 \u09b8\u09c7\u09ae\u09bf \u0993 b=4.7 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982 \u098f\u09a6\u09c7\u09b0 \u0985\u09a8\u09cd\u09a4\u09b0\u09cd\u09ad\u09c1\u0995\u09cd\u09a4 \u0995\u09cb\u09a3 \u2220x=450<\/sup> \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 a \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 BC \u09a8\u09bf\u0987\u0964<\/p>\n\n\n\n

(\u09e8) BC \u09b0\u09c7\u0996\u09be\u0982\u09b6\u09c7\u09b0 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u2220x \u098f\u09b0 \u09b8\u09ae\u09be\u09a8  \u2220BCE \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n

(\u09e9) \u098f\u0996\u09a8 CE \u09b0\u09c7\u0996\u09be\u0982\u09b6 \u09a5\u09c7\u0995\u09c7 b \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 CA \u0985\u0982\u09b6 \u0995\u09c7\u099f\u09c7 \u09a8\u09bf\u0987\u0964<\/p>\n\n\n\n

(\u09ea) A, B \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n

\u09a4\u09be\u09b9\u09b2\u09c7, \u25b3ABC -\u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964<\/p>\n\n\n\n

\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u25b3ABC-\u098f BC=a=3.8 \u09b8\u09c7\u09ae\u09bf, AC=b=4.7 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982 \u2220ACB=\u2220x=450<\/sup><\/p>\n\n\n\n

\u09e7\u09e8.\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0\u00a0\u098f\u0995\u099f\u09bf\u00a0\u09ac\u09be\u09b9\u09c1\u00a0\u0993\u00a0\u098f\u09b0\u00a0\u09b8\u0982\u09b2\u0997\u09cd\u09a8\u00a0\u09a6\u09c1\u0987\u099f\u09bf\u00a0\u0995\u09cb\u09a3\u00a0\u09a6\u09c7\u0993\u09af\u09bc\u09be\u00a0\u0986\u099b\u09c7\u0964\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf\u00a0\u0986\u0981\u0995\u0964<\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 5 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 300<\/sup>, 450<\/sup> <\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09be\u09b9\u09c1 a=5 \u09b8\u09c7\u09ae\u09bf \u0993 \u098f\u09b0 \u09b8\u0982\u09b2\u0997\u09cd\u09a8 \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3 \u2220x=300<\/sup> \u0993 \u2220y=450<\/sup> \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/strong><\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 a \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 BC \u0995\u09c7\u099f\u09c7 \u09a8\u09bf\u0987\u0964<\/p>\n\n\n\n

(\u09e8) BC \u09b0\u09c7\u0996\u09be\u09b0 B \u0993 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 \u2220CBE=\u2220x \u098f\u09ac\u0982 \u2220BCF=\u2220y \u0986\u0981\u0995\u09bf\u0964 \u098f\u09b0\u09be \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964<\/p>\n\n\n\n

\u09a4\u09be\u09b9\u09b2\u09c7 \u25b3ABC \u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964<\/p>\n\n\n\n

\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u25b3ABC \u098f \u2220ABC=\u2220x =450<\/sup>, <\/sub> \u2220BCA=\u2220y=300  <\/sup>\u098f\u09ac\u0982 <\/sup>a=5 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n

(<\/strong>\u0996<\/strong>) 4.5 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong>, 450<\/sup>, 600<\/sup><\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09be\u09b9\u09c1 a=4.5 \u09b8\u09c7\u09ae\u09bf \u0993 \u098f\u09b0 \u09b8\u0982\u09b2\u0997\u09cd\u09a8 \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3 \u2220x=600<\/sup> \u0993 \u2220y=450<\/sup> \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 a \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 BC \u0995\u09c7\u099f\u09c7 \u09a8\u09bf\u0987\u0964
(\u09e8) BC \u09b0\u09c7\u0996\u09be\u09b0 B \u0993 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 \u2220CBE=\u2220x \u098f\u09ac\u0982 \u2220BCF=\u2220y \u0986\u0981\u0995\u09bf\u0964 \u098f\u09b0\u09be \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964
\u09a4\u09be\u09b9\u09b2\u09c7 \u25b3ABC \u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u25b3ABC \u098f \u2220ABC=\u2220x =600<\/sup>, <\/sub> \u2220BCA=\u2220y=450  <\/sup>\u098f\u09ac\u0982 <\/sup>a=4.5 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n

\u09e7\u09e9<\/strong>. <\/strong>\u098f\u0995\u099f\u09bf<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0<\/strong> <\/strong>\u09a6\u09c1\u0987\u099f\u09bf<\/strong> <\/strong>\u0995\u09cb\u09a3<\/strong> <\/strong>\u0993<\/strong> <\/strong>\u09aa\u09cd\u09b0\u09a5\u09ae<\/strong> <\/strong>\u0995\u09cb\u09a3\u09c7\u09b0<\/strong> <\/strong>\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4<\/strong> <\/strong>\u09ac\u09be\u09b9\u09c1<\/strong> <\/strong>\u09a6\u09c7\u0993\u09af\u09bc\u09be<\/strong> <\/strong>\u0986\u099b\u09c7\u0964<\/strong> <\/strong>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf<\/strong> <\/strong>\u0986\u0981\u0995\u0964<\/strong><\/strong><\/p>\n\n\n\n

(<\/strong>\u0995<\/strong>) 1200<\/sup>, 300<\/sup>, 5 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong> <\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 \u2220x=1200<\/sup> \u0993 \u2220y=300<\/sup> \u098f\u09ac\u0982 1200<\/sup> \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 a=5 \u09b8\u09c7\u09ae\u09bf \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/strong><\/p>\n\n\n\n

(\u09e7) \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09b0\u09b6\u09cd\u09ae\u09bf BD \u09a5\u09c7\u0995\u09c7 a \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 BC \u0985\u0982\u09b6 \u09a8\u09bf\u0987\u0964
(\u09e8) BC \u09b0\u09c7\u0996\u09be\u0982\u09b6\u09c7\u09b0 B \u0993 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u2220y \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 \u2220CBF \u0993 \u2220DCE \u0986\u0981\u0995\u09bf\u0964
(\u09e9) \u0986\u09ac\u09be\u09b0 CE \u09b0\u09c7\u0996\u09be\u09b0 C \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u0989\u09b9\u09be\u09b0 \u09af\u09c7 \u09aa\u09be\u09b6\u09c7 \u2220y \u0985\u09ac\u09b8\u09cd\u09a5\u09bf\u09a4 \u09a4\u09be\u0981\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09aa\u09be\u09b6\u09c7 \u2220x \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u0995\u09b0\u09c7 \u2220ECG \u0986\u0981\u0995\u09bf\u0964
(\u09ea) CG \u09b0\u09c7\u0996\u09be BF \u09b0\u09c7\u0996\u09be\u0995\u09c7 A \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964
\u09a4\u09be\u09b9\u09b2\u09c7 \u25b3ABC \u0987 \u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983 \u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7, \u2220ABC=\u2220ECD. \u0995\u09bf\u09a8\u09cd\u09a4\u09c1 \u0995\u09cb\u09a3 \u09a6\u09c1\u0987\u099f\u09bf \u0985\u09a8\u09c1\u09b0\u09c1\u09aa \u09b9\u0993\u09af\u09bc\u09be\u09af\u09bc AB\u0964\u0964 CE. \u098f\u0996\u09a8, AB\u0964\u0964CE \u098f\u09ac\u0982 AC \u09a4\u09be\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u0995\u0964
\u2220BAC=\u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0\u2220ACE=1200
<\/sup>\u098f\u0996\u09a8, \u25b3ABC \u098f \u2220BAC=1200<\/sup>, \u2220BAC=300 <\/sup>\u098f\u09ac\u0982 \u2220BAC \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 BC=5 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n

(<\/strong>\u0996<\/strong>) 600<\/sup>, 300<\/sup>, 4 <\/strong>\u09b8\u09c7\u09ae\u09bf<\/strong><\/strong><\/p>\n\n\n\n

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

\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 \u2220x=600<\/sup> \u0993 \u2220y=300<\/sup> \u098f\u09ac\u0982 600<\/sup> \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 a=4 \u09b8\u09c7\u09ae\u09bf \u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0986\u0981\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u09c7\u09b0 \u09ac\u09bf\u09ac\u09b0\u09a3\u0983<\/strong><\/p>\n\n\n\n

(\u09e7)\u00a0\u09af\u09c7\u0995\u09cb\u09a8\u09cb\u00a0\u09b0\u09b6\u09cd\u09ae\u09bf\u00a0BD\u00a0\u09a5\u09c7\u0995\u09c7\u00a0a\u00a0\u098f\u09b0\u00a0\u09b8\u09ae\u09be\u09a8\u00a0\u0995\u09b0\u09c7\u00a0BC\u00a0\u0985\u0982\u09b6\u00a0\u09a8\u09bf\u0987\u0964
(\u09e8) BC\u00a0\u09b0\u09c7\u0996\u09be\u0982\u09b6\u09c7\u09b0\u00a0B\u00a0\u0993\u00a0C\u00a0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7\u00a0\u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4\u00a0\u2220y\u00a0\u098f\u09b0\u00a0\u09b8\u09ae\u09be\u09a8\u00a0\u0995\u09b0\u09c7\u00a0\u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7\u00a0\u2220CBF\u00a0\u0993\u00a0\u2220DCE\u00a0\u0986\u0981\u0995\u09bf\u0964
(\u09e9)\u00a0\u0986\u09ac\u09be\u09b0\u00a0CE\u00a0\u09b0\u09c7\u0996\u09be\u09b0\u00a0C\u00a0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7\u00a0\u0989\u09b9\u09be\u09b0\u00a0\u09af\u09c7\u00a0\u09aa\u09be\u09b6\u09c7\u00a0\u2220y\u00a0\u0985\u09ac\u09b8\u09cd\u09a5\u09bf\u09a4\u00a0\u09a4\u09be\u0981\u09b0\u00a0\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4\u00a0\u09aa\u09be\u09b6\u09c7\u00a0\u2220x\u00a0\u098f\u09b0\u00a0\u09b8\u09ae\u09be\u09a8\u00a0\u0995\u09b0\u09c7\u00a0\u2220ECG\u00a0\u0986\u0981\u0995\u09bf\u0964
(\u09ea) CG\u00a0\u09b0\u09c7\u0996\u09be\u00a0BF\u00a0\u09b0\u09c7\u0996\u09be\u0995\u09c7\u00a0A\u00a0\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7\u00a0\u099b\u09c7\u09a6\u00a0\u0995\u09b0\u09c7\u0964
\u09a4\u09be\u09b9\u09b2\u09c7\u00a0\u25b3ABC\u00a0\u0987\u00a0\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc\u00a0\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8\u0983\u00a0\u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7,\u00a0\u2220ABC=\u2220ECD.\u00a0\u0995\u09bf\u09a8\u09cd\u09a4\u09c1\u00a0\u0995\u09cb\u09a3\u00a0\u09a6\u09c1\u0987\u099f\u09bf\u00a0\u0985\u09a8\u09c1\u09b0\u09c1\u09aa\u00a0\u09b9\u0993\u09af\u09bc\u09be\u09af\u09bc\u00a0AB\u0964\u0964\u00a0CE.\u00a0\u098f\u0996\u09a8, AB\u0964\u0964CE\u00a0\u098f\u09ac\u0982\u00a0AC\u00a0\u09a4\u09be\u09a6\u09c7\u09b0\u00a0\u099b\u09c7\u09a6\u0995\u0964
\u2220BAC=\u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0\u2220ACE=600
<\/sup>\u0985\u09a4\u098f\u09ac,\u00a0\u25b3ABC\u00a0\u098f\u00a0\u2220BAC=300<\/sup>,\u00a0\u2220BAC=600\u00a0<\/sup>\u098f\u09ac\u0982\u00a0\u2220BAC\u00a0\u098f\u09b0\u00a0\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4\u00a0\u09ac\u09be\u09b9\u09c1\u00a0BC=4\u00a0\u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n\n\n\n
tags: <\/em>Class 7 Math book solution BD pdf,Math lecture guide for class 7,class 7 math bd pdf,\u0997\u09a3\u09bf\u09a4 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0-\u09ef.\u09e9 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u0985\u0999\u09cd\u0995\u09a8<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u09ed\u09ae \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 Seven (07) Math Book Solution | Chapter 09 : Triangles | Class 7 math book Online Solution in bangladesh (bd) \u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9: \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u0985\u0999\u09cd\u0995\u09a8 \u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9 \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 \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf […]<\/p>\n","protected":false},"author":1,"featured_media":4333,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"default","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":[33],"tags":[35,34],"class_list":["post-4687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-class-seven-7","tag-class-7","tag-class-seven"],"yoast_head":"\n\u09ef\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ef.\u09e9 | \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD<\/title>\n<meta name=\"description\" content=\"\u09ed\u09ae \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 Seven (07) Math Book Solution. 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