Question

Find the radius of a circle with a circumference of 45π centimeters.

Answer 1

22.5 cm

Explanation:

Answer 2

22.5 cm

Explanation:

The circumference of a circle is given by

C = 2*pi*r where r is the radius

The circumference is 45 pi

45pi = 2 * pi *r

Divide each side by 2pi

45pi/2pi =2pi*r/2pi

22.5 = r