In a right circular cone, the cross section made by a plane parallel to the base is a

A cone is cut by a plane parallel to its base and the upper part is removed. The part that is left over is called

During conversion of a solid from one shape to another, the volume of the new shape will

A solid piece of iron in the form of a cuboid of dimensions (49 cm × 33 cm × 24 cm) is moulded to form a solid sphere. The radius of the sphere is

The radius (in cm) of the largest right circular cone that can be cut out from a cube of edge 4.2 cm is