Question

A circle has a diameter of 9.
What is the circumference of the kircle in feet?

Answer 1

28.26

Explanation:

C = 2 π r

= d π

= 9 × 3.14

= 28.26

Answer 2

C = 9pi or approximately 28.26

Explanation:

We can find the circumference by using

C = pi*d

C = pi *9

We can approximate pi by 3.14

C = 3.14 * 9

28.26