{"id":20987,"date":"2026-05-25T16:51:13","date_gmt":"2026-05-25T10:51:13","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/find-missing-rectangle-length-11\/"},"modified":"2026-05-25T16:51:13","modified_gmt":"2026-05-25T10:51:13","slug":"find-missing-rectangle-length-11","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/find-missing-rectangle-length-11\/","title":{"rendered":"Find Missing Rectangle Length"},"content":{"rendered":"<p>The area of a rectangle is 459 mm\u00b2 and its breadth is 9 mm. What is the length?<\/p>\n<ul class=\"quiz-options\">\n<li>468 mm<\/li>\n<li>120 mm<\/li>\n<li>51 mm<\/li>\n<li>9 mm<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2776,2836],"subject":[2746],"education_level":[1894],"class_list":["post-20987","mcq","type-mcq","status-publish","hentry","topic-area-and-perimeter","topic-area-of-rectangle","subject-mensuration","education_level-grade-8"],"mcq_note":"For a rectangle, area = length \u00d7 breadth. So length = area \u00f7 breadth = 459 \u00f7 9 = 51. The missing length is 51 mm. Notice that both measurements are lengths, but the answer is in square units because we are counting how many unit squares cover the surface. Do not add the sides here; adding sides is used for perimeter, not area. So the correct choice is 51 mm.","mcq_options":[{"right":"no","answer":"468 mm"},{"right":"no","answer":"120 mm"},{"right":"yes","answer":"51 mm"},{"right":"no","answer":"9 mm"}],"multi_answers":"no","subject_terms":[{"id":2746,"title":"Mensuration","slug":"mensuration"}],"topic_terms":[{"id":2776,"title":"Area and Perimeter","slug":"area-and-perimeter"},{"id":2836,"title":"Area of Rectangle","slug":"area-of-rectangle"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/20987","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=20987"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=20987"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=20987"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=20987"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=20987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}