{"id":4667,"date":"2022-09-26T14:19:26","date_gmt":"2022-09-26T14:19:26","guid":{"rendered":"https:\/\/www.studyzonebd.com\/math\/?p=4667"},"modified":"2022-09-26T14:29:07","modified_gmt":"2022-09-26T14:29:07","slug":"class-7-chapter-9-lesson-9-2","status":"publish","type":"post","link":"https:\/\/www.studyzonebd.com\/math\/class-7-chapter-9-lesson-9-2\/","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.\u09e8 | \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.\u09e8: \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09be\u09b9\u09c1 \u0993 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995<\/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.\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 \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.\u09e8 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/strong><\/span><\/h4>\n\n\n\n

\u09a8\u09bf\u099a\u09c7\u09b0 \u09a4\u09a5\u09cd\u09af\u09c7\u09b0 \u09ad\u09bf\u09a4\u09cd\u09a4\u09bf\u09a4\u09c7 \u09e7-\u09e9 \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

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

\u099a\u09bf\u09a4\u09cd\u09b0\u09c7, CE, \u2220ACD \u098f\u09b0 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u0995\u0964 AB\u0964\u0964 CE \u098f\u09ac\u0982 \u2220ECD=600<\/sup><\/p>\n\n\n\n

\u09e7. <\/strong>\u2220BAC <\/strong>\u098f\u09b0 \u09ae\u09be\u09a8 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a8\u099f\u09bf?<\/strong><\/p>\n\n\n\n

\u0995. 300   <\/sup> \u0996. 450   <\/sup> \u0997. 1200   <\/sup> \u0998. 1200
<\/sup>\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09e8. <\/strong>\u2220ACD <\/strong>\u098f\u09b0 \u09ae\u09be\u09a8 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a8\u099f\u09bf?<\/strong><\/p>\n\n\n\n

\u0995. 600   <\/sup> \u0996. 900   <\/sup> \u0997. 1200   <\/sup> \u0998. 1800
<\/sup>\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09e9. <\/strong>\u25b3ABC <\/strong>\u0995\u09cb\u09a8 \u09a7\u09b0\u09a8\u09c7\u09b0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c?<\/strong><\/p>\n\n\n\n

\u0995. \u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a8\u09c0   \u0996. \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u09ac\u09be\u09b9\u09c1    \u0997. \u09b8\u09ae\u09ac\u09be\u09b9\u09c1    \u0998. \u09b8\u09ae\u0995\u09cb\u09a3\u09c0
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09ea. \u098f\u0995\u099f\u09bf \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09be\u09b9\u09c1 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 5 \u09b8\u09c7\u09ae\u09bf \u098f\u09ac\u0982 4 \u09b8\u09c7\u09ae\u09bf\u0964 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf\u09b0 \u0985\u09aa\u09b0 \u09ac\u09be\u09b9\u09c1\u099f\u09bf \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a8\u099f\u09bf \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7?<\/strong><\/p>\n\n\n\n

\u0995. 1 \u09b8\u09c7\u09ae\u09bf    \u0996. 4 \u09b8\u09c7\u09ae\u09bf    \u0997. 9 \u09b8\u09c7\u09ae\u09bf    \u0998. 10 \u09b8\u09c7\u09ae\u09bf
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0996<\/p>\n\n\n\n

\u09eb. \u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u098f\u0995\u099f\u09bf 400<\/sup> \u09b9\u09b2\u09c7, \u0985\u09aa\u09b0 \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c7\u09b0 \u09ae\u09be\u09a8 \u09a8\u09bf\u099a\u09c7\u09b0 \u0995\u09cb\u09a8\u099f\u09bf?<\/strong><\/p>\n\n\n\n

\u0995. 400<\/sup>   \u0996. 500   <\/sup> \u0997. 600   <\/sup> \u0998. 1400
<\/sup>\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0996<\/p>\n\n\n\n

\u09ec. \u0995\u09cb\u09a8\u09cb \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u0995\u09cb\u09a3 \u0985\u09aa\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf\u09b0 \u09b8\u09ae\u09be\u09a8 \u09b9\u09b2\u09c7, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u099f\u09bf \u0995\u09c0 \u09a7\u09b0\u09a8\u09c7\u09b0 \u09b9\u09ac\u09c7?<\/strong><\/p>\n\n\n\n

\u0995. \u09b8\u09ae\u09ac\u09be\u09b9\u09c1    \u0996. \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c0    \u0997. \u09b8\u09ae\u0995\u09cb\u09a3\u09c0    \u0998. \u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3\u09c0
\u0989\u09a4\u09cd\u09a4\u09b0\u0983 \u0997<\/p>\n\n\n\n

\u09ed.\u00a0\u25b3ABC\u00a0\u098f AB>AC \u098f\u09ac\u0982\u00a0\u2220B\u00a0\u0993\u00a0\u2220C\u00a0\u098f\u09b0 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u0995\u09a6\u09cd\u09ac\u09af\u09bc \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 P \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u099b\u09c7\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, PB>PC.<\/strong><\/p>\n\n\n\n

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

\u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7,<\/p>\n\n\n\n

\u25b3ABC-\u098f, AB>AC \u098f\u09ac\u0982 \u2220B \u0993 \u2220C \u098f\u09b0 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u0995\u09a6\u09cd\u09ac\u09af\u09bc \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 BP \u0993 CP \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0\u0995\u09c7 P \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u099b\u09c7\u0964<\/p>\n\n\n\n

\u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, PB>PC.<\/p>\n\n\n\n

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

\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/p>\n\n\n\n

\u09a7\u09be\u09aa<\/td>\u09af\u09a5\u09be\u09b0\u09cd\u09a5\u09a4\u09be<\/td><\/tr>
\u09e7. \u09af\u09c7\u09b9\u09c7\u09a4\u09c1 BP,\u00a0\u2220B\u00a0\u098f\u09b0 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u0995
\u2234\u2220PBC=1\/2\u2220ABC
\u098f\u09ac\u0982 PC,\u00a0\u2220C\u00a0\u098f\u09b0 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u0995
\u2234\u2220PCB=1\/2\u2220ACB<\/td>		[\u0995\u09b2\u09cd\u09aa\u09a8\u09be]
\u00a0
[\u0995\u09b2\u09cd\u09aa\u09a8\u09be]<\/td><\/tr>
\u09e8.\u00a0\u25b3ABC-\u098f, AB>AC
\u2234\u2220ACB>\u2220ABC
\u09ac\u09be, 1\/2\u2220ACB>1\/2\u2220ABC
\u09ac\u09be,\u00a0\u2220PCB>\u2220PBC
\u2234\u00a0PB>PC (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/td>		[\u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4\u0995\u09cb\u09a3 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae]\u00a0

[\u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4\u0995\u09cb\u09a3 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u09ee. ABC \u098f\u0995\u099f\u09bf \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u09ac\u09be\u09b9\u09c1 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u098f\u09ac\u0982 \u098f\u09b0 AB=AC; BC \u0995\u09c7 \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09a6\u09c1\u09b0\u09a4\u09cd\u09ac\u09c7 D \u09aa\u09b0\u09cd\u09af\u09a8\u09cd\u09a4 \u09ac\u09be\u09a1\u09bc\u09be\u09a8\u09cb \u09b9\u09b2\u09cb\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, AD>AB.<\/strong><\/p>\n\n\n\n

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

\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8\u0983
\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, ABC \u098f\u0995\u099f\u09bf \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u09ac\u09be\u09b9\u09c1 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u098f\u09ac\u0982 \u098f\u09b0 AB=AC.
BC-\u0995\u09c7 \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09a6\u09c2\u09b0\u09a4\u09cd\u09ac D \u09aa\u09b0\u09cd\u09af\u09a8\u09cd\u09a4 \u09ac\u09be\u09a1\u09bc\u09be\u09a8\u09cb \u09b9\u09b2\u09cb\u0964
A, D \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09b2\u09cb\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, AD>AB.<\/p>\n\n\n\n

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

\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/p>\n\n\n\n

\u09a7\u09be\u09aa<\/td>\u09af\u09a5\u09be\u09b0\u09cd\u09a5\u09a4\u09be<\/td><\/tr>
\u09e7. \u25b3ABC \u098f AB=AC
\u2234 \u2220ABC=\u2220ACB<\/td>		[\u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u09ac\u09be\u09b9\u09c1 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ad\u09c2\u09ae\u09bf
\u09b8\u0982\u09b2\u0997\u09cd\u09a8 \u0995\u09cb\u09a3\u09a6\u09cd\u09ac\u09af\u09bc \u09b8\u09ae\u09be\u09a8]<\/td><\/tr>
\u09e8. \u25b3ABC \u098f\u09b0 \u09ac\u09b9\u09bf\u0983\u09b8\u09cd\u09a5 \u0995\u09cb\u09a3
\u2220ACD=\u2220ABC+\u2220BAC.<\/td>		[\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09be\u09b9\u09c1\u0995\u09c7 \u09ac\u09b0\u09cd\u09a7\u09bf\u09a4
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\u09b8\u09ae\u09be\u09a8]<\/td><\/tr>
\u09e9. \u09b8\u09c1\u09a4\u09b0\u09be\u0982, \u2220ACD>\u2220ABC
\u2234 \u2220ACD>\u2220ACB<\/td>		[(\u09e7) \u09a5\u09c7\u0995\u09c7]<\/td><\/tr>
\u09ea. \u2220ACD+\u2220ACB=\u098f\u0995 \u09b8\u09b0\u09b2\u0995\u09cb\u09a3
=\u09a6\u09c1\u0987 \u2220ACD \u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3<\/td>		[\u2234\u2220ACB \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3]<\/td><\/tr>
\u09eb. \u25b3ACD \u098f \u2220ACD \u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3
\u09b9\u09b2\u09c7, \u2220ADC \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3 \u09b9\u09ac\u09c7\u0964
\u2234 \u2220ACD>\u2220ADC
\u09ac\u09be, AD>AC
\u09b8\u09c1\u09a4\u09b0\u09be\u0982, AD>AB (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/td>		[\u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0 \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1
\u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0]
 
 
[AC=AB]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u09ef. ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7 AB=AD, BC=CD \u098f\u09ac\u0982 CD>AD \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, <\/strong>\u2220DAB > \u2220BCD.<\/strong><\/p>\n\n\n\n

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

\u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7, ABCD \u099a\u09a4\u09c1\u09b0\u09cd\u09ad\u09c1\u099c\u09c7 AB=AD, BC=CD \u098f\u09ac\u0982 CD>AD
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, \u2220DAB>\u2220BCD.<\/p>\n\n\n\n

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

\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/p>\n\n\n\n

\u09a7\u09be\u09aa<\/td>\u09af\u09a5\u09be\u09b0\u09cd\u09a5\u09a4\u09be<\/td><\/tr>
\u09e7. CD>AD
\u2234\u2220CAD>\u2220ACD<\/td>		[\u0995\u09b2\u09cd\u09aa\u09a8\u09be]<\/td><\/tr>
\u09e8. \u0986\u09ac\u09be\u09b0, BC=CD
\u098f\u09ac\u0982 AB=AD
\u2234BC>AB
\u2234\u2220BAC>\u2220BCA<\/td>		[\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u09b0
\u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae]<\/td><\/tr>
\u09e9. \u2220CAD+\u2220BAC>\u2220ACD+\u2220BCA
\u2234\u2220 DAB>\u2220BCD (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/td>		[(\u09e7) \u0993 (\u09e8) \u09a5\u09c7\u0995\u09c7]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u09e7\u09e6. <\/strong>\u25b3ABC <\/strong>\u098f  <\/strong>\u2220ABC>\u2220ACB. D, BC <\/strong>\u09ac\u09be\u09b9\u09c1\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964<\/strong><\/p>\n\n\n\n

(\u0995) \u09a4\u09a5\u09cd\u09af\u09c7\u09b0 \u0986\u09b2\u09cb\u0995\u09c7 \u099a\u09bf\u09a4\u09cd\u09b0\u099f\u09bf \u0985\u0999\u09cd\u0995\u09a8 \u0995\u09b0\u0964<\/strong><\/p>\n\n\n\n

(\u0996) \u09a6\u09c7\u0996\u09be\u0993 \u09af\u09c7, AC>AB
<\/strong>(\u0997) \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, AB+AC>2AD<\/strong><\/p>\n\n\n\n

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

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

\u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4\u09c7\u09b0 \u0986\u09b2\u09cb\u0995\u09c7 \u09a8\u09bf\u099a\u09c7\u09b0 \u099a\u09bf\u09a4\u09cd\u09b0\u099f\u09bf \u0986\u0981\u0995\u09be \u09b9\u09b2\u09cb\u0983-<\/p>\n\n\n\n

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

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

\u25b3ABC \u098f  \u2220ABC>\u2220ACB.D, BC \u09ac\u09be\u09b9\u09c1\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964
\u09a6\u09c7\u0996\u09be\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, AC>AB
\u09aa\u09cd\u09b0\u09be\u09ae\u09be\u09a8\u0983
\u09af\u09a6\u09bf AC>AB \u09a8\u09be \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 AC=AB \u09ac\u09be AC<AB \u09b9\u09ac\u09c7\u0964
AC=AB \u09b9\u09b2\u09c7, \u2220ABC=\u2220ACB  \u09b9\u09ac\u09c7 [\u0995\u09be\u09b0\u09a8 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u09ac\u09be\u09b9\u09c1 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ad\u09c2\u09ae\u09bf \u09b8\u0982\u09b2\u0997\u09cd\u09a8 \u0995\u09cb\u09a3\u09a6\u09cd\u09ac\u09af\u09bc \u09b8\u09ae\u09be\u09a8 \u09b9\u09af\u09bc]
\u0995\u09bf\u09a8\u09cd\u09a4\u09c1, \u2220ABC>\u2220ACB \u09ac\u09bf\u09a7\u09be\u09af\u09bc AC=AB \u09b9\u09ac\u09c7 \u09a8\u09be\u0964
\u0986\u09ac\u09be\u09b0,
AC<AB \u09b9\u09b2\u09c7, \u2220ABC<\u2220ACB \u09b9\u09ac\u09c7 [\u0995\u09be\u09b0\u09a8 \u0995\u09cd\u09b7\u09c1\u09a6\u09cd\u09b0\u09a4\u09b0 \u09ac\u09be\u09b9\u09c1\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3 \u0995\u09cd\u09b7\u09c1\u09a6\u09cd\u09b0\u09a4\u09b0 \u09b9\u09af\u09bc]
\u0995\u09bf\u09a8\u09cd\u09a4\u09c1, \u2220ABC>\u2220ACB \u09ac\u09bf\u09a7\u09be\u09af\u09bc AC<AB \u09b9\u09ac\u09c7 \u09a8\u09be\u0964
\u09a4\u09be\u09b9\u09b2\u09c7, AC>AB \u09b9\u09ac\u09c7 (\u09a6\u09c7\u0996\u09be\u09a8\u09cb \u09b9\u09b2\u09cb)<\/p>\n\n\n\n

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

\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8\u0983
\u25b3ABC \u098f  \u2220ABC>\u2220ACB. D, BC \u09ac\u09be\u09b9\u09c1\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, AB+AC>2AD.<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u0983<\/p>\n\n\n\n

AD \u0995\u09c7 E \u09aa\u09b0\u09cd\u09af\u09a8\u09cd\u09a4 \u098f\u09ae\u09a8 \u09ad\u09be\u09ac\u09c7 \u09ac\u09b0\u09cd\u09a7\u09bf\u09a4 \u0995\u09b0\u09bf \u09af\u09c7\u09a8 AD=DE \u09b9\u09af\u09bc\u0964 \u098f\u09ac\u0982 E, C \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983
\u25b3ABD \u0993 \u25b3DEC-\u098f\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7,
AD=DE [\u0985\u0999\u09cd\u0995\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7]
BD=DC [\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7]
\u2220ADB=\u2220EDC [\u09ac\u09bf\u09aa\u09cd\u09b0\u09a4\u09c0\u09aa \u0995\u09cb\u09a8]
\u2234\u25b3ABD \u2245 \u25b3DEC
\u2234AB=EC
\u098f\u0996\u09a8,
\u25b3AEC-\u098f\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7,
AC+EC>AE
\u09ac\u09be, AC+AB>AD+DE [\u2234AB=EC]
\u09ac\u09be, AC+AB>2AD (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n

\u09e7\u09e7. <\/strong>\u25b3ABC <\/strong>\u098f AB=AC \u098f\u09ac\u0982 D, BC \u098f\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, AB>AD.<\/strong><\/p>\n\n\n\n

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

\u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7, \u25b3ABC \u098f AB=AC \u098f\u09ac\u0982 D, BC \u098f\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, AB>AD.<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u0983<\/p>\n\n\n\n

A, D \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983
\u00a0\u25b3ABC\u00a0\u098f\u00a0\u00a0AB=AC
\u2234\u2220ABC=\u2220ACB
\u09ac\u09be,\u00a0\u2220ABD=\u2220ACD [\u09b8\u09ae\u09be\u09a8 \u09b8\u09ae\u09be\u09a8 \u09ac\u09be\u09b9\u09c1\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3 \u09b8\u09ae\u09be\u09a8]
\u0986\u09ac\u09be\u09b0,
\u25b3ADC\u00a0\u098f\u00a0\u00a0\u2220ADB>\u2220ACD [\u09ac\u09b9\u09bf\u0983\u09b8\u09cd\u09a5 \u0995\u09cb\u09a3 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0]
\u09ac\u09be,\u00a0\u2220ADB>\u2220ABD
\u2234AB>AD (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n

\u09e7\u09e8. <\/strong>\u25b3ABC <\/strong>\u098f AB<\/strong>\u22a5<\/strong>AC \u098f\u09ac\u0982 D, AC \u098f\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, BC>BD.<\/strong><\/p>\n\n\n\n

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

\u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7,
\u25b3ABC \u098f AB\u22a5AC \u098f\u09ac\u0982 D, AC \u098f\u09b0 \u0989\u09aa\u09b0 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, BC>BD.<\/p>\n\n\n\n

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

\u0985\u0999\u09cd\u0995\u09a8\u0983<\/p>\n\n\n\n

B,D \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964
\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983
\u25b3ABD \u098f   \u2220BAD=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3\u0964 [AB\u22a5AC]
\u2234\u2220CAB>\u2220ABC   [\u2220BDA+\u2220ABD=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3]
\u2220BDA \u098f\u0995\u099f\u09bf \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3
\u0995\u09be\u099c\u09c7\u0987 \u2220BDC \u098f\u0995\u099f\u09bf \u09b8\u09cd\u09a5\u09c1\u09b2\u0995\u09cb\u09a3\u0964
\u098f\u0996\u09a8, \u25b3BDC \u098f\u09b0 \u09ac\u09b9\u09bf\u0983\u09b8\u09cd\u09a5
\u2220BDC>\u2220BCD        [\u2220BDC \u0993 \u2220BCD \u09aa\u09c2\u09b0\u0995 \u0995\u09cb\u09a3]       
\u2234BC>BD. [\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae]<\/p>\n\n\n\n

\u09e7\u09e9. \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, \u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0985\u09a4\u09bf\u09ad\u09c1\u099c\u0987 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u0964<\/strong><\/p>\n\n\n\n

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

\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8\u0983
\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u25b3ABC \u098f\u0995\u099f\u09bf \u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c, \u09af\u09be\u09b0 \u09ad\u09c2\u09ae\u09bf BC \u098f\u09ac\u0982 \u0985\u09a4\u09bf\u09ad\u09c1\u099c AC. \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, AC-\u0987 \u25b3ABC \u098f\u09b0 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0 \u09ac\u09be\u09b9\u09c1\u0964<\/p>\n\n\n\n

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

\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/p>\n\n\n\n

\u25b3ABC \u098f \u2220ABC=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3\u0964
\u09b8\u09c1\u09a4\u09b0\u09be\u0982, \u2220BAC+\u2220ACB=900
<\/sup>\u09ac\u09be, \u2220BAC<900
<\/sup>\u09ac\u09be, \u2220ACB<900
<\/sup>\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u0995\u09cb\u09a3\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09b9\u09af\u09bc,
\u098f\u0996\u09be\u09a8\u09c7 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u0995\u09cb\u09a3 900<\/sup>=\u2220ABC \u09af\u09be\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ac\u09be\u09b9\u09c1 \u0985\u09a4\u09bf\u09ad\u09c1\u099c AC.
\u2234\u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u0985\u09a4\u09bf\u09ad\u09c1\u099c\u0987 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1 (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n

\u09e7\u09ea. \u09aa\u09cd\u09b0\u09ae\u09be\u09a8 \u0995\u09b0 \u09af\u09c7, \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae\u0964<\/strong><\/p>\n\n\n\n

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

\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8\u0983
\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, \u25b3ABC \u098f\u09b0 AC \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, \u2220ABC \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u0995\u09cb\u09a3\u0964<\/p>\n\n\n\n

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

\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/p>\n\n\n\n

AC>BC
\u2234\u2220ABC>\u2220BAC
\u0986\u09ac\u09be\u09b0,
AC>AB
\u2234\u2220ABC>\u2220BCA
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\u2234\u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae \u09ac\u09be\u09b9\u09c1\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u0995\u09cb\u09a3 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09ae (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n

\u09e7\u09eb. \u099a\u09bf\u09a4\u09cd\u09b0\u09c7, <\/strong>\u2220QPM=RPM <\/strong>\u098f\u09ac\u0982 <\/strong>\u2220QPR=900<\/sup>.<\/strong>  PQ=6 \u09b8\u09c7\u09ae\u09bf<\/strong><\/p>\n\n\n\n

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

\u0995. <\/strong>\u2220QPM <\/strong>\u098f\u09b0 \u09ae\u09be\u09a8 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u0964<\/strong><\/p>\n\n\n\n

\u0996. <\/strong>\u2220PQM <\/strong>\u0993 <\/strong>\u2220PRM<\/strong> \u098f\u09b0 \u09ae\u09be\u09a8 \u0995\u09a4?
<\/strong>\u0997. PR \u098f\u09b0 \u09ae\u09be\u09a8 \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

\u0995.
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\u2220QPR=900
<\/sup>\u09ac\u09be, \u2220QPM+\u2220RPM=900
<\/sup>\u09ac\u09be, \u2220QPM+\u2220QPM=900  <\/sup>[\u2220QPM=RPM]
\u09ac\u09be, 2\u2220QPM=900
<\/sup>\u09ac\u09be, \u2220QPM=900<\/sup>\/2
\u09ac\u09be, \u2220QPM=450<\/sup><\/p>\n\n\n\n

\u0996.<\/strong><\/p>\n\n\n\n

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\u098f\u09ac\u0982, \u2220RPM=\u2220QPR-\u2220QPM=900<\/sup>-450<\/sup>=450
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\u0997.<\/strong><\/p>\n\n\n\n

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\u09ac\u09be, 6=PR
\u09ac\u09be, PR=6 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\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.\u09e8 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af\u09ae\u09be \u0989\u099a\u09cd\u099a\u09a4\u09be \u0995\u09cb\u09a3\u09c7\u09b0 \u09ae\u09be\u09a8\n<\/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.\u09e8: \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09ac\u09be\u09b9\u09c1 \u0993 \u0995\u09cb\u09a3\u09c7\u09b0 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995 \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.\u09e8 \u098f\u09b0 \u09b8\u0995\u09b2 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u0989\u09a4\u09cd\u09a4\u09b0 \u098f\u0996\u09be\u09a8\u09c7 […]<\/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-4667","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.\u09e8 | \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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