Question

You walk around a circle which has a diameter of 9 m, how far have you walked?

Answer 1

28.26 m

Explanation:

Radius = 9/2 = 4.5m

Circumference = 2 × pi × r

= 2 × 3.14 × 4.5

= 28.26

Answer 2

C =28.26m

Explanation:

We are walking around a circle, which means we are finding the perimeter. The perimeter of a circle is called the circumference.

We find the circumference by

C = pi *d where d is the diameter

C = 3.14 * 9

C =28.26m