A toy is in the form of a cone mounted on a hemisphere the diameter of the base of the cone is 18 cm and its height is 12 centimetre calculate the surface area of toy

A toy is in the form of a cone mounted on a hemisphere the diameter of the base of the cone is 18 cm and its height is 12 centimetre calculate the surface area of toy

A toy is in the form of a cone mounted on a hemisphere the diameter of the base of the cone is 18 cm and its height is 12 centimetre calculate the surface area of toy