{"id":20185,"date":"2026-05-22T00:28:42","date_gmt":"2026-05-21T18:28:42","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/the-radius-of-a-circular-plate-is-4-cm-what-is-its-diameter-for-a-science-fair-model\/"},"modified":"2026-05-22T00:28:42","modified_gmt":"2026-05-21T18:28:42","slug":"the-radius-of-a-circular-plate-is-4-cm-what-is-its-diameter-for-a-science-fair-model","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/the-radius-of-a-circular-plate-is-4-cm-what-is-its-diameter-for-a-science-fair-model\/","title":{"rendered":"The radius of a circular plate is 4 cm. What is its diameter for a science fair model"},"content":{"rendered":"
The radius of a circular plate is 4 cm. What is its diameter for a science fair model?<\/p>\n\n
\n
4 cm<\/li>\n
16 cm<\/li>\n
8 cm<\/li>\n
10 cm<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2781],"subject":[2746],"education_level":[2495],"class_list":["post-20185","mcq","type-mcq","status-publish","hentry","topic-radius-and-diameter","subject-mensuration","education_level-grade-7"],"mcq_note":"Diameter is twice the radius. 2 \u00d7 4 = 8 cm. The diameter passes through the centre and is made of two equal radii. A diameter is a full straight line across the circle through the centre, so it contains two equal radii. Therefore multiply the radius by 2 and keep the answer as a length unit.","mcq_options":[{"right":"no","answer":"4 cm"},{"right":"no","answer":"16 cm"},{"right":"yes","answer":"8 cm"},{"right":"no","answer":"10 cm"}],"multi_answers":"no","subject_terms":[{"id":2746,"title":"Mensuration","slug":"mensuration"}],"topic_terms":[{"id":2781,"title":"Radius and Diameter","slug":"radius-and-diameter"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/20185","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=20185"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=20185"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=20185"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=20185"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=20185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}