Question

pls answer this question any one

Answer 1

hope it is helpful for you

Answer 2

Given, Base radius is 15cm
           Height is 32 cms
Volume of a cylinder =$\pi$r^2.h
=$\pi$(15)^2 . 32
=$\pi$225 . 32
=$\pi$7200 (Keep this as equation 1)

When recasted again, volume of old cylinder=volume of new one
$\pi$7200 = $\pi$ r^2 . h
$\pi$7200 =$\pi$ (20)^2 . h
($\pi$ get cancelled)
=7200/400 = h
h=18cm