If curved surface area of a solid sphere is S and volume is V, let us write the value of [not putting the value of π]

The numerical values of volume and whole surface area of a solid hemisphere are equal, let us write the length of radius of the hemisphere.

The curved surface area of a solid sphere is equal to the surface area of a solid right circular cylinder. The lengths of both height and diameter of cylinder are 12 cm. Let us write the length of radius of the sphere.

Whole surface area of a solid hemisphere is equal to the curved surface area of the solid sphere. Let us write the ratio of lengths of radius of hemisphere and sphere.

If the length of radius of a sphere is increased by 50%, let us write how much percent will be increased of its curved surface area.