{"id":18934,"date":"2026-05-19T22:39:42","date_gmt":"2026-05-19T16:39:42","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/area-of-circle-radius-21\/"},"modified":"2026-05-19T22:39:42","modified_gmt":"2026-05-19T16:39:42","slug":"area-of-circle-radius-21","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/area-of-circle-radius-21\/","title":{"rendered":"Area of Circle Radius 21"},"content":{"rendered":"<p>Using \u03c0 = 22\/7, what is the area of a circle with radius 21 cm?<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>42 cm\u00b2<\/li>\n<li>1386 cm\u00b2<\/li>\n<li>132 cm\u00b2<\/li>\n<li>441 cm\u00b2<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2780,2778],"subject":[2744],"education_level":[1894],"class_list":["post-18934","mcq","type-mcq","status-publish","hentry","topic-area","topic-circles","subject-geometry","education_level-grade-8"],"mcq_note":"Area of a circle is found with A = \u03c0r\u00b2. Using \u03c0 = 22\/7, A = 22\/7 \u00d7 21\u00b2 = 1386 cm\u00b2.","mcq_options":[{"right":"no","answer":"42 cm\u00b2"},{"right":"yes","answer":"1386 cm\u00b2"},{"right":"no","answer":"132 cm\u00b2"},{"right":"no","answer":"441 cm\u00b2"}],"multi_answers":"no","subject_terms":[{"id":2744,"title":"Geometry","slug":"geometry"}],"topic_terms":[{"id":2780,"title":"Area","slug":"area"},{"id":2778,"title":"Circles","slug":"circles"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/18934","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/comments?post=18934"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=18934"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=18934"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=18934"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=18934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}