Question

A solid is in the form of cone mounted on a hemisphere in such a way that the centre of the base of the cone just coincide with the centre of the base of the hemishpere.Slant height of the cone in l and the radius of the base of the cone is 1/2r where r is the radius of the hemishpere.Prove that the total surface area of solid is π/4(11r+2l)r sq.unit​

Answer 1

Step-by-step explanation:

A solid cone mounted on a hemisphere in such a way that the centre of base of cone just coincide with centre of the base of hemisphere. Slant height of the cone is l and radius of base of cone is 1/2r, where r is the radius of hemisphere. Prove that surface area of solid is Π/4(11r+2l)r sq units.