Question

Find the circumference of the circle. Round to the nearest tenth.

A. 251.3 in.

B. 125.7 in.

C. 164.8 in.

D. 225.4 in.

Answer 1

Answer: A. 251.3 in.

Explanation:

We can use this formula to solve for the circumference of a circle. r is equal to the radius, or half of the circle's width.

C = 2πr

C = 2πr

C = 2π(40)

C ≈ 251.3

A. 251.3 in.