Question

The circumference of a circle is 113 pi. What is the radius?

Answer 1

R=18 (17.98)

Explanation:

Since c=dπ

113=dπ

SOlve for d

113=dπ

/π /π

36=d (35.96)

Divide by 2, since the radius is the half of diameter

r=18 (17.98)