Geometry — act-dog

Mathematics Preparing for Higher Math · Geometry Q42

Question 42 as printed in the ACT Practice Test 2 booklet — As printed in the official booklet.

The figure shows nABC , a right isosceles triangle, inscribed in a circle with center O and radius 10 cm. ⏜ What is the length, in centimeters, of arc A B shown as the thick curved line? A B 10 cm O C

F
20 π
G
15π
H
10π
J
5π

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