Question

if the ratio of radii of two cylinder of equal height is 1:3 find the ratio of there curved surface area ​

Answer 1

Answer:

Step-by-step explanation:

Let the radius of one cylinder be x

And the other radius be 3x

Heights of both the cylinders are equal

CSA of cylinder = 2πrh

CSA first cylinder : CSA of second cylinder

2π*x*h : 2π*3x*H

x : 3x

1:3

The ratio of their CSA is 1 : 3

Answer 2

Answer:

Step-by-step explanation:

The answer is in the below link ...

Hope it helps