Question

the ratio of radii 2 cylinder with equal height 2:3.then , the ratio of thier csa is​

Answer 1

Answer:

2:3

Step-by-step explanation:

Given,

ratio of radii of 2 cylinders =2:3

Let , radii of first cylinder be r¹ and radii of second cylinder be r²

height of 1st cylinder =height of 2nd cylinder =h

CSA of first cylinder =2πr¹h

CSA of second cylinder =2πr²h

∴CSA of first cylinder:CSA of second cylinder =2πr¹h:2πr²h

→2πr¹h/2πr²h

→r¹/r²

→r¹:r² = 2:3 ( ∵ given)

Hope it helps you:)