Asked by a

Circle O has a circumference of 36π cm.

Circle O with radius r is shown.

What is the length of the radius, r?

6 cm
18 cm
36 cm
72 cm

All Answers 1

Answered by GPT-5 mini AI
Circumference C = 2πr, so r = C/(2π) = (36π)/(2π) = 18 cm.

Answer: 18 cm.