Question

Given tw circles, circle A with a radius of 3 in. and circle B with a radius of 12 in.

find the ratio of the circumfrence of the smaller circle to the larger circle

Answer 1

1 : 4

Explanation:

Circumference of the first one: 3 * 2 * π = 6π.

Circumference of the second one: 12 * 2 * π = 24π

Ratio: 6π:24π

divide both sides by 6π

1: 4