{"id":5267,"date":"2022-10-21T13:35:26","date_gmt":"2022-10-21T13:35:26","guid":{"rendered":"https:\/\/www.studyzonebd.com\/math\/?p=5267"},"modified":"2022-10-21T19:18:12","modified_gmt":"2022-10-21T19:18:12","slug":"class-8-chapter-10-lesson-10-2","status":"publish","type":"post","link":"https:\/\/www.studyzonebd.com\/math\/class-8-chapter-10-lesson-10-2\/","title":{"rendered":"\u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09e7\u09e6.\u09e8 | \u09ee\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u09ee\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 Eight (08) <a href=\"https:\/\/en.wikipedia.org\/wiki\/Mathematics\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Math <\/a>Book Solution | <a href=\"https:\/\/www.studyzonebd.com\/math\">Chapter <\/a>10 : Circle| Class 8 math book Online Solution in Bangla (BD)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09e7\u09e6.\u09e8 : \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0\u00a0\u0989\u09aa\u09aa\u09be\u09a6\u09cd\u09af: \u099c\u09cd\u09af\u09be \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09bf\u09a4 &#8211; <a href=\"#download-pdf-521415415\">PDF<\/a><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09e7\u09e6.\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 \u09ee\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<h4 class=\"has-text-align-center has-ast-global-color-1-color has-text-color wp-block-heading\"><span style=\"text-decoration: underline;\"><strong>\u09ee\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 \u0997\u09a3\u09bf\u09a4 \u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09e7\u09e6.\u09e8 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/strong><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09e7. \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0\u0995\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09b2\u09c7 \u09a6\u09c7\u0996\u09be\u0993 \u09af\u09c7, \u098f\u09a6\u09c7\u09b0 \u098f\u0995\u099f\u09bf\u09b0 \u0985\u0982\u09b6\u09a6\u09cd\u09ac\u09af\u09bc \u0985\u09aa\u09b0\u099f\u09bf\u09b0 \u0985\u0982\u09b6\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u09b8\u09ae\u09be\u09a8\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-101.jpg\" alt=\"\" class=\"wp-image-5272\" width=\"257\" height=\"220\" srcset=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-101.jpg 347w, https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-101-300x257.jpg 300w\" sizes=\"(max-width: 257px) 100vw, 257px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 \u09a6\u09c1\u0987\u099f\u09bf \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be AB \u0993 CD \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 P \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, PA=PD \u098f\u09ac\u0982 PB=PC.<a><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0985\u0999\u09cd\u0995\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 O \u09a5\u09c7\u0995\u09c7 AB \u0993 CD \u098f\u09b0 \u0989\u09aa\u09b0 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 OM \u098f\u09ac\u0982 ON \u09b2\u09ae\u09cd\u09ac \u0986\u0981\u0995\u09bf\u0964 O, P \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25b3MOP \u0993&nbsp;\u25b3NOP \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2220OMP=\u2220ONP=90<sup>0<\/sup>&nbsp;[\u0985\u0999\u09cd\u0995\u09a8 \u0985\u09a8\u09c1\u09b8\u09be\u09b0\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM=ON [\u09b8\u09ae\u09be\u09a8 \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 \u09b8\u09ae\u09a6\u09c2\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OP \u09b8\u09be\u09a7\u09be\u09b0\u09a3 \u09ac\u09be\u09b9\u09c1\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;\u25b3MOP&nbsp;\u2245&nbsp;\u25b3NOP<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;MP=NP\u2026\u2026(i)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u098f\u0996\u09a8<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AB=CD [\u09b6\u09b0\u09cd\u09a4 \u09ae\u09a4\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, \u00bdAB= \u00bdCD<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, AM=DN [\u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b2\u09ae\u09cd\u09ac \u099c\u09cd\u09af\u09be \u0995\u09c7 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u09bf\u09a4 \u0995\u09b0\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, AM+MP=DN+MP [\u0989\u09ad\u09af\u09bc\u09aa\u0995\u09cd\u09b7\u09c7 MP \u09af\u09cb\u0997 \u0995\u09b0\u09bf]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, AM+MP=DN+NP [(i) \u09a8\u0982 \u09b9\u09a4\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, PA=PD\u2026..(ii)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0986\u09ac\u09be\u09b0,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AB=CD [\u09b6\u09b0\u09cd\u09a4 \u09ae\u09a4\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, AB-PA=CD-PD [(ii) \u09a8\u0982 \u09b9\u09a4\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, PB=PC<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0985\u09a4\u098f\u09ac, PA=PD \u098f\u09ac\u0982 PB=PC (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09e8. \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0 \u09af\u09c7, \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be-\u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0997\u09c1\u09b2\u09cb \u09b8\u09ae\u09ac\u09c3\u09a4\u09cd\u09a4\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-1021.jpg\" alt=\"\" class=\"wp-image-5274\" width=\"267\" height=\"241\" srcset=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-1021.jpg 317w, https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-1021-300x271.jpg 300w\" sizes=\"(max-width: 267px) 100vw, 267px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 AB, CD \u0993 EF \u09a4\u09bf\u09a8\u099f\u09bf \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be\u0964 AB, CD \u0993 EF \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u0997\u09c1\u09b2\u09cb \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 M, P \u0993 N\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, M, P \u0993 N \u09b8\u09ae\u09ac\u09c3\u09a4\u09cd\u09a4\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0985\u0999\u09cd\u0995\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O, M; O, N \u098f\u09ac\u0982 O, P \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0986\u09ae\u09b0\u09be \u099c\u09be\u09a8\u09bf, \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b2\u09ae\u09cd\u09ac \u099c\u09cd\u09af\u09be \u0995\u09c7 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u09bf\u09a4 \u0995\u09b0\u09c7\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09af\u09c7\u09b9\u09c7\u09a4\u09c1 M, P, N \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 \u099c\u09cd\u09af\u09be AB, CD, EF \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09b8\u09c7\u09b9\u09c7\u09a4\u09c1 OM, OP, ON \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 AB, CD, EF \u098f\u09b0 \u0989\u09aa\u09b0 \u09b2\u09ae\u09cd\u09ac\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09a4\u09be\u09b9\u09b2\u09c7, OM, OP, ON \u0987 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 \u099c\u09cd\u09af\u09be \u09a4\u09bf\u09a8\u099f\u09bf\u09b0 \u09a6\u09c2\u09b0\u09a4\u09cd\u09ac\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u098f\u0996\u09a8,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM=OP=ON [\u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09b8\u0995\u09b2 \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 \u09b8\u09ae\u09a6\u09c2\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09b8\u09c1\u09a4\u09b0\u09be\u0982, O \u0995\u09c7 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u0995\u09b0\u09c7 OM, ON, OP \u098f\u09b0 \u09b8\u09ae\u09be\u09a8 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7 \u09a8\u09bf\u09af\u09bc\u09c7 \u09ac\u09c3\u09a4\u09cd\u09a4 \u0986\u0981\u0995\u09b2\u09c7 \u09a4\u09be M, N, P \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a6\u09bf\u09af\u09bc\u09c7 \u09af\u09ac\u09c7\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0985\u09a4\u098f\u09ac, M, N, P \u09b8\u09ae\u09ac\u09c3\u09a4\u09cd\u09a4 (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09e9. \u09a6\u09c7\u0996\u09be\u0993 \u09af\u09c7, \u09ac\u09cd\u09af\u09be\u09b8\u09c7\u09b0 \u09a6\u09c1\u0987 \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a5\u09c7\u0995\u09c7 \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09a6\u09bf\u0995\u09c7 \u09a6\u09c1\u0987\u099f\u09bf \u09b8\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09be\u09b2 \u099c\u09cd\u09af\u09be \u0985\u0999\u09cd\u0995\u09a8 \u0995\u09b0\u09b2\u09c7 \u098f\u09b0\u09be \u09b8\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09be\u09b2 \u09b9\u09af\u09bc\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-103.jpg\" alt=\"\" class=\"wp-image-5276\" width=\"257\" height=\"226\" srcset=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-103.jpg 327w, https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-103-300x263.jpg 300w\" sizes=\"(max-width: 257px) 100vw, 257px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 AB \u09ac\u09cd\u09af\u09be\u09b8\u0964 AB \u09ac\u09cd\u09af\u09be\u09b8\u09c7\u09b0 A \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a5\u09c7\u0995\u09c7 AD \u099c\u09cd\u09af\u09be \u098f\u09ac\u0982 B \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a5\u09c7\u0995\u09c7 BC \u099c\u09cd\u09af\u09be \u0985\u0999\u09cd\u0995\u09a8 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, AD\u0964\u0964BC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AD=BC [\u09b6\u09b0\u09cd\u09a4\u09be\u09a8\u09c1\u09b8\u09be\u09b0\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AB \u09a4\u09be\u09a6\u09c7\u09b0 \u099b\u09c7\u09a6\u0995\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234\u2220DAB=\u2220CBA<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u099b\u09c7\u09a6\u0995\u09c7\u09b0 \u0989\u09ad\u09af\u09bc \u09aa\u09be\u09b6\u09c7\u09b0 \u098f\u0995\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09cb\u09a3\u0997\u09c1\u09b2\u09cb \u09b8\u09ae\u09be\u09a8 \u09b9\u09b2\u09c7 \u09b0\u09c7\u0996\u09be\u09a6\u09cd\u09ac\u09af\u09bc \u09b8\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09be\u09b2\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234AD\u0964\u0964BC (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ea. \u09a6\u09c7\u0996\u09be\u0993 \u09af\u09c7, \u09ac\u09cd\u09af\u09be\u09b8\u09c7\u09b0 \u09a6\u09c1\u0987 \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a5\u09c7\u0995\u09c7 \u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09a6\u09bf\u0995\u09c7 \u09a6\u09c1\u0987\u099f\u09bf \u09b8\u09ae\u09be\u09a8\u09cd\u09a4\u09b0\u09be\u09b2 \u099c\u09cd\u09af\u09be \u0986\u0981\u0995\u09b2\u09c7 \u098f\u09b0\u09be \u09b8\u09ae\u09be\u09a8 \u09b9\u09af\u09bc\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-104.jpg\" alt=\"\" class=\"wp-image-5277\" width=\"245\" height=\"240\" srcset=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-104.jpg 326w, https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-104-300x294.jpg 300w\" sizes=\"(max-width: 245px) 100vw, 245px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 AB \u09ac\u09cd\u09af\u09be\u09b8\u0964 AB \u098f\u09b0 A \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a5\u09c7\u0995\u09c7 AD \u099c\u09cd\u09af\u09be \u098f\u09ac\u0982 B \u09aa\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a5\u09c7\u0995\u09c7 BC \u099c\u09cd\u09af\u09be \u0986\u0981\u0995\u09be \u09b9\u09b2 \u098f\u09ac\u0982 AD\u0964\u0964BC\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, AD=BC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0985\u0999\u09cd\u0995\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 O \u09a5\u09c7\u0995\u09c7 AD \u0993 BC \u098f\u09b0 \u0989\u09aa\u09b0 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 OM \u0993 ON \u09b2\u09ae\u09cd\u09ac \u0986\u0981\u0995\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25b3AOM \u0993&nbsp;\u25b3BON \u098f\u09b0 \u09ae\u09a7\u09cd\u09af,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2220OMA=\u2220ONB [OM\u22a5AD; ON\u22a5BC]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2220MAO=\u2220NBO [AD\u0964\u0964BC \u0993 AB \u099b\u09c7\u09a6\u0995]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AO=BO [\u098f\u0995\u0987 \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;\u25b3AOM&nbsp;\u2245&nbsp;\u25b3BON<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;OM=ON<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09a4\u09be\u09b9\u09b2\u09c7, AD=BC [\u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 \u09b8\u09ae\u09a6\u09c2\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0 \u09b8\u0995\u09b2 \u099c\u09cd\u09af\u09be \u09b8\u09ae\u09be\u09a8]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;AD=BC (\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09eb. \u09a6\u09c7\u0996\u09be\u0993 \u09af\u09c7, \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09a6\u09c1\u0987\u099f\u09bf \u099c\u09cd\u09af\u09be-\u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0 \u099c\u09cd\u09af\u09be \u099f\u09bf \u0995\u09cd\u09b7\u09c1\u09a6\u09cd\u09b0\u09a4\u09b0 \u099c\u09cd\u09af\u09be \u0985\u09aa\u09c7\u0995\u09cd\u09b7\u09be \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09c7\u09b0 \u09a8\u09bf\u0995\u099f\u09a4\u09b0\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-105.jpg\" alt=\"\" class=\"wp-image-5278\" width=\"220\" height=\"225\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 AB \u0993 CD \u09a6\u09c1\u0987\u099f\u09bf \u099c\u09cd\u09af\u09be \u098f\u09ac\u0982 AB&gt;CD\u0964 AB \u0993 CD \u098f\u09b0 \u0989\u09aa\u09b0\u09c7 \u09b2\u09ae\u09cd\u09ac\u09a6\u09cd\u09ac\u09af\u09bc \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 OE \u0993 OF\u0964 \u09a6\u09c7\u0996\u09be\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, OE&lt;OF.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0985\u0999\u09cd\u0995\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O, A \u0993 O, C \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09af\u09c7\u09b9\u09c7\u09a4\u09c1, OE\u22a5AB \u098f\u09ac\u0982 OF\u22a5CD<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AE= \u00bdAB, CF=\u00bdCD [\u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a5\u09c7\u0995\u09c7 \u099c\u09cd\u09af\u09be \u098f\u09b0 \u0989\u09aa\u09b0 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b2\u09ae\u09cd\u09ac \u099c\u09cd\u09af\u09be\u0995\u09c7 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u09bf\u09a4 \u0995\u09b0\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0995\u09bf\u09a8\u09cd\u09a4\u09c1, AB&gt;CD<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234AE&gt;CF&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u098f\u0996\u09a8,&nbsp;\u25b3OAE \u098f OA<sup>2<\/sup>=AE<sup>2<\/sup>+OE<sup>2<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u098f\u09ac\u0982&nbsp;\u25b3OCF \u098f OC<sup>2<\/sup>=CF<sup>2<\/sup>+OF<sup>2<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0995\u09bf\u09a8\u09cd\u09a4\u09c1, OA=OC [\u098f\u0995\u0987 \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;OA<sup>2<\/sup>=OC<sup>2<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;AE<sup>2<\/sup>+OE<sup>2<\/sup>=CF<sup>2<\/sup>+OF<sup>2<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u098f\u0996\u09a8, AE&gt;CF \u09b9\u0993\u09af\u09bc\u09be\u09af\u09bc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AE<sup>2<\/sup>&gt;CF<sup>2<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;OE<sup>2<\/sup>&lt;OF<sup>2<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, OE&lt;OF<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0985\u09b0\u09cd\u09a5\u09be\u09ce, \u09ac\u09c3\u09b9\u09a4\u09cd\u09a4\u09b0 \u099c\u09cd\u09af\u09be\u099f\u09bf \u0995\u09cd\u09b7\u09c1\u09a6\u09cd\u09b0\u09a4\u09b0 \u099c\u09cd\u09af\u09be \u0985\u09aa\u09c7\u0995\u09cd\u09b7\u09be \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09c7\u09b0 \u09a8\u09bf\u0995\u099f\u09a4\u09b0\u0964 (\u09a6\u09c7\u0996\u09be\u09a8\u09cb \u09b9\u09b2\u09cb)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ec. O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 PQ \u098f\u09ac\u0982 RS \u09a6\u09c1\u099f\u09bf \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 M \u0993 N\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0995) 314 \u09ac\u09b0\u09cd\u0997 \u09b8\u09c7\u09ae\u09bf \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09ab\u09b2 \u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc \u0995\u09b0\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0986\u09ae\u09b0\u09be \u099c\u09be\u09a8\u09bf,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09ab\u09b2=&nbsp;\u03c0r<sup>2<\/sup>&nbsp;[r=\u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09a6\u09c7\u0993\u09af\u09bc\u09be \u0986\u099b\u09c7, \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09cd\u09b7\u09a4\u09cd\u09b0\u09ab\u09b2=314 \u09ac\u09b0\u09cd\u0997 \u09b8\u09c7\u09ae\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09ae\u09a4\u09c7,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03c0r<sup>2<\/sup>=314<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, 3.1416*r<sup>2<\/sup>=314<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, r<sup>2<\/sup>=314\/3.1416<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, r<sup>2<\/sup>=99.949<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, r=\u221a99.949<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, r=9.997<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234\u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7=9.997 \u09b8\u09c7\u09ae\u09bf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0996) \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0 \u09af\u09c7, OM=ON\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"175\" height=\"177\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-10-chapter-10.2-106.jpg\" alt=\"\" class=\"wp-image-5279\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 PQ \u0993 RS \u09a6\u09c1\u0987\u099f\u09bf \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be \u09af\u09be\u09a6\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 M \u0993 N\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7,&nbsp;&nbsp;OM=ON\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0985\u0999\u09cd\u0995\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O, Q \u0993 O, S \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0986\u09ae\u09b0\u09be \u099c\u09be\u09a8\u09bf, \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a5\u09c7\u0995\u09c7 \u0985\u0999\u09cd\u0995\u09bf\u09a4 \u09b2\u09ae\u09cd\u09ac \u099c\u09cd\u09af\u09be \u0995\u09c7 \u09b8\u09ae\u09a6\u09cd\u09ac\u09bf\u0996\u09a8\u09cd\u09a1\u09bf\u09a4 \u0995\u09b0\u09c7\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0, \u099c\u09cd\u09af\u09be PQ \u0993 RS \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 M \u0993 N\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09a4\u09be\u09b9\u09b2\u09c7, OM\u22a5PQ \u098f\u09ac\u0982 ON\u22a5RS\u2026\u2026.(i)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u098f\u0996\u09a8,&nbsp;\u25b3OMQ \u0993&nbsp;\u25b3ONS \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2220OMQ=\u2220ONS=\u098f\u0995 \u09b8\u09ae\u0995\u09cb\u09a3 [(i) \u09a8\u0982 \u09b9\u09a4\u09c7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MQ=NS [\u09af\u09c7\u09b9\u09c7\u09a4\u09c1 PQ=RS, \u099c\u09cd\u09af\u09be PQ \u0993 RS \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 M \u0993 N ]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OQ=OS [\u098f\u0995\u0987 \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u09ac\u09cd\u09af\u09be\u09b8\u09be\u09b0\u09cd\u09a7]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234&nbsp;\u25b3OMQ&nbsp;\u2245&nbsp;\u25b3ONS<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0985\u09a4\u098f\u09ac, OM=ON [\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u09bf\u09a4]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0997) PQ \u098f\u09ac\u0982 RS \u099c\u09cd\u09af\u09be\u09a6\u09cd\u09ac\u09af\u09bc \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0985\u09ad\u09cd\u09af\u09a8\u09cd\u09a4\u09b0\u09c7 \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0\u0995\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09b2\u09c7 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0 \u09af\u09c7, \u098f\u0995\u099f\u09bf\u09b0 \u0985\u0982\u09b6\u09a6\u09cd\u09ac\u09af\u09bc \u0985\u09aa\u09b0\u099f\u09bf\u09b0 \u0985\u0982\u09b6\u09a6\u09cd\u09ac\u09af\u09bc\u09c7\u09b0 \u09b8\u09ae\u09be\u09a8\u0964<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-9-chapter-10.3-1032.jpg\" alt=\"\" class=\"wp-image-5284\" width=\"233\" height=\"219\" srcset=\"https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-9-chapter-10.3-1032.jpg 1000w, https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-9-chapter-10.3-1032-300x282.jpg 300w, https:\/\/www.studyzonebd.com\/math\/wp-content\/uploads\/2022\/10\/class-9-chapter-10.3-1032-768x722.jpg 768w\" sizes=\"(max-width: 233px) 100vw, 233px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09ac\u09bf\u09b6\u09c7\u09b7 \u09a8\u09bf\u09b0\u09cd\u09ac\u099a\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ae\u09a8\u09c7 \u0995\u09b0\u09bf, O \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09ac\u09bf\u09b6\u09bf\u09b7\u09cd\u099f \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7 \u09a6\u09c1\u0987\u099f\u09bf \u09b8\u09ae\u09be\u09a8 \u099c\u09cd\u09af\u09be PQ \u0993 RS \u09aa\u09b0\u09b8\u09cd\u09aa\u09b0 E \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u099b\u09c7\u09a6 \u0995\u09b0\u09c7\u0964 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09af\u09c7, PE=RE \u098f\u09ac\u0982 QE=SE.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0985\u0999\u09cd\u0995\u09a8\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 O \u09a5\u09c7\u0995\u09c7 PQ \u0993 RS \u098f\u09b0 \u0989\u09aa\u09b0 \u09af\u09a5\u09be\u0995\u09cd\u09b0\u09ae\u09c7 OM \u098f\u09ac\u0982 ON \u09b2\u09ae\u09cd\u09ac \u0986\u0981\u0995\u09bf\u0964 O, E \u09af\u09cb\u0997 \u0995\u09b0\u09bf\u0964<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u09aa\u09cd\u09b0\u09ae\u09be\u09a3\u0983<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(\u09e7) \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u098f\u09ac\u0982 OM\u22a5 \u099c\u09cd\u09af\u09be PQ.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2234 PM = QM<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0985\u09b0\u09cd\u09a5\u09cd\u09af\u09be\u09ce PM = <sup>1<\/sup>\/<sub>2<\/sub> PQ<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0986\u09ac\u09be\u09b0, ON \u22a5 \u099c\u09cd\u09af\u09be RS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0985\u09b0\u09cd\u09a5\u09cd\u09af\u09be\u09ce RN = <sup>1<\/sup>\/<sub>2<\/sub> RS<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(\u09e8) \u098f\u0996\u09a8, PQ = RS<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, <sup>1<\/sup>\/<sub>2<\/sub>PQ = <sup>1<\/sup>\/<sub>2<\/sub>RS<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u09ac\u09be, QM = SN <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0986\u09ac\u09be\u09b0, OM \u098f\u09ac\u0982 ON, \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0 \u09b9\u09a4\u09c7 PQ \u098f\u09ac\u0982 RS \u099c\u09cd\u09af\u09be\u09a6\u09cd\u09ac\u09df\u09c7\u09b0 \u09a6\u09c1\u09b0\u09a4\u09cd\u09ac\u0964<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<figure id=\"download-pdf-521415415\" class=\"wp-block-table is-style-regular\"><table class=\"has-vivid-cyan-blue-border-color has-border-color\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Class 8 math book all chapter solution Bangla version pdf | \u09ee\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 PDF<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-cool-to-warm-spectrum-gradient-background has-background\" href=\"https:\/\/drive.google.com\/file\/d\/10YhMRD2UE1BQZaaJKuOFmjmKWOV01lji\/view\" target=\"_blank\" rel=\"noreferrer noopener\">Download<\/a><\/div><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<pre class=\"wp-block-preformatted\"><em>tags: <\/em>Bangladesh, Bangla, Bengali, Class 8\/jsc math solution 2021 pdf, 8th class maths guide pdf free download, math book solution BD, JSC srijonshil math, Chapter 10.2, \u09ac\u09c3\u09a4\u09cd\u09a4, \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0 \u099c\u09cd\u09af\u09be<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u09ee\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 Eight (08) Math Book Solution | Chapter 10 : Circle| Class 8 math book Online Solution in Bangla (BD) \u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09e7\u09e6.\u09e8 : \u09ac\u09c3\u09a4\u09cd\u09a4\u09c7\u09b0\u00a0\u0989\u09aa\u09aa\u09be\u09a6\u09cd\u09af: \u099c\u09cd\u09af\u09be \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09bf\u09a4 &#8211; PDF \u09e7\u09e6\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09ac\u09c3\u09a4\u09cd\u09a4 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09e7\u09e6.\u09e8 \u098f\u09b0 \u09b8\u0995\u09b2 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u0989\u09a4\u09cd\u09a4\u09b0 \u098f\u0996\u09be\u09a8\u09c7 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4919,"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 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