Question

What is the circumference of the following circle when diameter = 9 cm

Answer 1

diameter of 9

radius 4.5

4.5 x 3.14= 14.13

ignore this- the other person got it right. I messed up and can't delete it. Sorry!

Answer 2

The answer is C≈28.27cm

Explanation:

Using the formulas

C=2πr

d=2r

Solving for C

C=πd=π·9≈28.27433cm