Question

FIND THE CIRCUMFERENCE OF EACH CIRCLE. USE 3.14 OR 22/7 FOR π.

A button with a radius of 21 millimeters

Answer 1

C =132 mm

Explanation:

The circumference is given by

C = 2*pi*r

We know pi = 22/7 and r = 21

C = 2 * 22/7 *21

C = 44/7 *21

C =132 mm