{"id":37958,"date":"2026-05-21T19:38:08","date_gmt":"2026-05-21T13:38:08","guid":{"rendered":"https:\/\/mcqacademy.com\/bn\/mcq\/find-cos-ratio-from-a-20-21-29-triangle-2\/"},"modified":"2026-05-21T19:38:08","modified_gmt":"2026-05-21T13:38:08","slug":"find-cos-ratio-from-a-20-21-29-triangle-2","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/bn\/mcq\/find-cos-ratio-from-a-20-21-29-triangle-2\/","title":{"rendered":"20-21-29 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c \u09a5\u09c7\u0995\u09c7 \u0995\u09cb\u09b8\u09be\u0987\u09a8 \u0985\u09a8\u09c1\u09aa\u09be\u09a4 \u09a8\u09bf\u09b0\u09cd\u09a3\u09af\u09bc"},"content":{"rendered":"<p>\u098f\u0995\u099f\u09bf \u09b8\u09ae\u0995\u09cb\u09a3\u09c0 \u09a4\u09cd\u09b0\u09bf\u09ad\u09c1\u099c\u09c7 \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09bf\u09a4 \u09b8\u09c2\u0995\u09cd\u09b7\u09cd\u09ae\u0995\u09cb\u09a3\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09b8\u09a8\u09cd\u09a8\u09bf\u09b9\u09bf\u09a4 \u09ac\u09be\u09b9\u09c1 20 \u098f\u09ac\u0982 \u0985\u09a4\u09bf\u09ad\u09c1\u099c \u09ac\u09be\u09b9\u09c1 29\u0964 \u0990 \u0995\u09cb\u09a3\u09c7\u09b0 cos \u0995\u09a4?<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>29\/21<\/li>\n<li>20\/29<\/li>\n<li>29\/20<\/li>\n<li>20\/70<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[8674],"subject":[8570],"education_level":[8354],"class_list":["post-37958","mcq","type-mcq","status-publish","hentry","topic-trigonometric-ratios","subject-trigonometry","education_level-grade-7"],"mcq_note":"\u0995\u09cb\u09b8\u09be\u0987\u09a8 \u09b8\u09a8\u09cd\u09a8\u09bf\u09b9\u09bf\u09a4 \u09ac\u09be\u09b9\u09c1\u0995\u09c7 \u0985\u09a4\u09bf\u09ad\u09c1\u099c\u09c7\u09b0 \u09b8\u0999\u09cd\u0997\u09c7 \u09a4\u09c1\u09b2\u09a8\u09be \u0995\u09b0\u09c7: cos \u03b8 = \u09b8\u09a8\u09cd\u09a8\u09bf\u09b9\u09bf\u09a4 \u09ac\u09be\u09b9\u09c1 \u00f7 \u0985\u09a4\u09bf\u09ad\u09c1\u099c\u0964 \u098f\u0996\u09be\u09a8\u09c7 cos \u03b8 = 20 \u00f7 29 = 20\/29\u0964","mcq_options":[{"right":"no","answer":"29\/21"},{"right":"yes","answer":"20\/29"},{"right":"no","answer":"29\/20"},{"right":"no","answer":"20\/70"}],"multi_answers":"no","subject_terms":[{"id":8570,"title":"\u09a4\u09cd\u09b0\u09bf\u0995\u09cb\u09a3\u09ae\u09bf\u09a4\u09bf","slug":"trigonometry"}],"topic_terms":[{"id":8674,"title":"Trigonometric Ratios","slug":"trigonometric-ratios"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/mcq\/37958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/comments?post=37958"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/media?parent=37958"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/topic?post=37958"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/subject?post=37958"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/bn\/wp-json\/wp\/v2\/education_level?post=37958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}