Question

if the radius of a cylinder is r and the height is h, how will the volume change, if the
1.height is doubled
2.height is doubled and the radius is halved
3. height is same and the radius is halved

Answer 1

1. if the h is doubled volume will be become π*r^2*2h,that is volume will also be doubled
2.then the volume becomes π*r^2/2*2h=πr^2 h.
Volume remains same.
3.then volume becomes, πr^2/2*h.
that is ,volume becomes half

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