If the radius of a cylinder is doubled keeping its lateral surface area the same, then what is its height ?

Write True or False If the length of the radius of a right circular cylinder is doubled and height is halved , then lateral surface area is equal to the lateral surface area of the original cylinder.

If the radius of a cone be r units, its height h unit and lateral surface areas S sq unit, then prove that h= sqrt(S^2-pi^2r^4)/(pir) .

If the length of the radius of a right circular cylinder is doubled and height is halved, then its lateral surface area will be

The weight of a body on the earth's surface is W. if the radius of the earth becomes double keeping its mass unchanged, what will be the weight of the body ?

The slant height of a right circular cone is 3 times of its radius of base . If the whole surface area of the cone be 50.24 sq-cm, then what will be the height of the cone ?

If the radius of a cylinder and hemisphere is same and their height is also equal then the ratio of their volume is

If the radius of a sphere be doubled, then what percent of its whole surface area will be increased ?

If the radius of cylinder is doubled, but height is reduced by 50% . What is the percentage change in volume ?

The lateral surface area of a cylinder is equal to the curved surface area of cone . If their bases are the same, find the ratio of the height of the cylinder to the slant height of the cone.