Question

Suppose the radius of a circle is 5. What is its circumference?

Either enter an exact answer in terms of or use 3.14 for 7 and enter your answer
as a decimal.

Answer 1

10π units

Explanation:

Circumference = 2πr

Circumference = 2 * 5 * π

Circumference = 10π

Answer 2

The circumference of the circle is 31.42

Explanation:

use 2πr to find the circumference of a circle. since you know the radius is 5, put the 5 were the r is and put the formula into a calculator.

2π(5) = 31.42