{"id":3380,"date":"2026-05-25T11:40:36","date_gmt":"2026-05-25T11:40:36","guid":{"rendered":"https:\/\/mcqacademy.com\/zh\/mcq\/circle-area-using-radius-12\/"},"modified":"2026-05-25T11:40:36","modified_gmt":"2026-05-25T11:40:36","slug":"circle-area-using-radius-12","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/zh\/mcq\/circle-area-using-radius-12\/","title":{"rendered":"\u7531\u534a\u5f84\u6c42\u5706\u7684\u9762\u79ef"},"content":{"rendered":"<p>\u53d6 \u03c0 = 22\/7\uff0c\u6c42\u534a\u5f84\u4e3a 42 cm \u7684\u5706\u7684\u9762\u79ef\u3002<\/p>\n<ul class=\"quiz-options\">\n<li>131.88 cm\u00b2<\/li>\n<li>1764 cm\u00b2<\/li>\n<li>5544 cm\u00b2<\/li>\n<li>264 cm\u00b2<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[1165,1166],"subject":[1083],"education_level":[3],"class_list":["post-3380","mcq","type-mcq","status-publish","hentry","topic-circle","topic-area","subject-mensuration","education_level-grade-8"],"mcq_note":"\u5706\u7684\u9762\u79ef = \u03c0r\u00b2\u3002\u8fd9\u91cc r = 42\uff0c\u6240\u4ee5\u9762\u79ef = 22\/7 \u00d7 42 \u00d7 42 = 5544\u3002\u534a\u5f84\u8981\u5148\u5e73\u65b9\uff0c\u56e0\u4e3a\u9762\u79ef\u4e0e r\u00b2 \u6709\u5173\u3002\u6b63\u786e\u9009\u9879\u662f 5544 cm\u00b2\u3002","mcq_options":[{"right":"no","answer":"131.88 cm\u00b2"},{"right":"no","answer":"1764 cm\u00b2"},{"right":"yes","answer":"5544 cm\u00b2"},{"right":"no","answer":"264 cm\u00b2"}],"multi_answers":"no","subject_terms":[{"id":1083,"title":"\u6d4b\u91cf","slug":"mensuration"}],"topic_terms":[{"id":1165,"title":"\u5706","slug":"circle"},{"id":1166,"title":"\u9762\u79ef","slug":"area"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/mcq\/3380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/comments?post=3380"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/media?parent=3380"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/topic?post=3380"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/subject?post=3380"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/education_level?post=3380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}