Question

Circle O had a circumference of 36 2.14 cm. What is the length of the radius, r?

Answer 1

Hello from MrBillDoesMath!

Answer:

r =  = 57.6  (approximately)

Discussion:

Given: circumference of circle O = 362.14

The circumference of a circle of radius r, is given by the formula C = 2 *PI *2.

So we need to find the value of r in

2*Pi*r = 362.14

Divide both sides by 2*PI to get

r = (362.14)/ (2 * Pi)   =   (362.14)/  6.283         (approximately)

                                 = 57.6  (approximately)

Thank you,

MrB