Question

if the radius of clyinder is doubled then how much percent volume is increase​

Answer 1

calculate it by using 4/3×3.14×r×r×r

Answer 2

The formula for the volume of cylinder is V = πrsquareh. So r is same value , and then we double it , what happens to the volume ? Let's say original r= x and doubled r =2x.

Original volume =π(x) square =πhrsquare

The new volume after doubling r would be π(2x) square h=4πhx

The new volume would be 4 times the original.

I hope it helps .....