Question

By what percent will the volume of a cylinder increase if its radius is doubled and height is halved?​

Answer 1

Answer: 100% increase

Explanation:

N=New Volume

V=πr^2h

N=π(2*r)^2*h/2

N=π*4(r)^2*h/2

N=4π(r)^2*h/2

N=2πr^2*h

V=πr^2h

N=πr^2h+πr^2h ==> 100% increase in V