A large sphere of radius 3.5cm is carved from cubical solid. Find the difference between their surface areas

A large sphere of radius 3.5 cm is carved from a cubical solid. Find the difference between their surface areas.

A solid metallic sphere of radius 8 cm is melted to form 64 equal small solid spheres . The ratio of the surface area of this sphere to that of a small sphere is

A solid metallic sphere of radius 8 cm is melted to form 64 equal small solid spheres. The ratio of the surface area of this sphere to that of a small sphere is

A solid sphere of diameter 14cm is cut into two equal halves.Find the increase in the total surface area of solid sphere?

The larges sphere is carved out of a cube of side 10.5cm. Find the volume of the sphere.

A cone of maximum size is carved out from a solid cube of side 14 cm. Find the total surface area of the remaining solid left out.

The surface area of a sphere of radius 5 cm is five times the area of the curved surface of a cone of radius 4 cm, find the height of the cone.

The internal and external radii of a hollow sphere are 3 cm and 5 cm respectively. The sphere is melted to from a solid cylinder of height 2""2/3cm . Find the diameter and the curved surface area of the cylinder.

The larges sphere is carved out of a cube of side 10.5 cm. Find the volume of the sphere.