Question

in a cylinder if radius is halved and height is doubled then the volume will be ​

Answer 1

Answer: radius of the cylinder is halved r(final) =(r/2)^2

=r^2/4

Now, height of the cylinder is doubled h(final) =2h

Therefore, new volume= πr(final)h(final) =πr^2x 2h/4

= πr^2 xh/2