Geometry — act-dog

Mathematics Preparing for Higher Math · Geometry Q7

Question 7 as printed in the ACT Practice Test 2 booklet — As printed in the official booklet.

For circle O shown, A , B , C , and D are on circle O ; A and B are as far apart as possible; C is halfway between A and B along circle O ; and D is halfway between C and B along circle O . What percent of the area enclosed ⏜ by circle O is enclosed by O ‾C , O‾D , and minor arc C D ? B D O A C

A
12.5%
B
25%
C
50%
D
100%

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