Question

The ratio of the radio of two circles is 3:2 . What is the ratio of their circumference?​

Answer 1

Ratio of radii = 3 : 2

So, let the radii of two circles be 3r and 2r respectively.

Let C1 and C2 be the circumferences of the two circles of radii 3r and 2r respectively.

C1 = 2π × 3r = 6πr

C2 = 2π × 2r = 4πr

According to the question,

=> 6πr÷4πr

=> 3÷2

Hence, C1 and C2 = 3÷2 = 3 : 2

Hope it helps you...

Mark my answer as brainliest...