Question

The radius of a circular mirror is 4 centimeters. What is the circumference of the mirror

Tell what value you used for π

Answer 1

25.16736 (I am using 3.14592 as the value of
`\pi`)

Explanation:

to find the circumference we do

diameter x pi

diameter = 2x radius

so to get the diameter we x 4 by 2

4 x 2 = 8

now we do

8 x pi

I am using the value 3.14592 for pi

3.14592 x 8 = 25.16736