Question

A circular swimming pool is 21 feet in diameter.

How many feet around is the pool?

A. 10.5 ft
B. 131.95 ft
C. 65.94 ft
D. 42 ft

Answer 1

Answer: C

Explanation:

C = 2πr

Radius = 21/2 = 10.5

C = 2 x π x 10.5

C = 65.97

Answer 2

C. 65.94 ft

Explanation:

We want to find the circumference:

C = pi * d

C =3.14 * 21

C =65.94 ft