Question

the radius of two circle are in the ratio 2 :
3 what is ratio of their circumference

Answer 1

Answer:

2:3

Step-by-step explanation:

Let radii be 2x, 3x

Circumference of a circle = 2πr

Therefore,

Ratio of circumferences = (2 × π × 2x) : (2 × π × 3x)

Cancelling out common terms 2, π and x,

Ratio = 2:3