A right triangle, whose base and height are 15 cm and 20 cm. respectively is made to revolve about its hypotenuse. Find the volume and surface area of the doble cone so formed.
(use pi = 3.14)

Find the volume and surface area of a sphere of radius 14cm ( pi=22/7 )

Find the total surface area of hemi sphere of radius 10 cm. (Use pi = 3.14 )

Find the total surface area of a hemisphere of radius 10 cm . (use pi =3.14

Find the volume and the total surface area of a hemisphere of radius 3.5 cm. (pi=22/7)

A right circular cylinder has radius 3.5 cm and height 14 cm. Find curved surface area.

A toy is in the form of a cone mounted on a hemisphere. The diameter of the base and the height of the cone are 6 cm and 4 cm respectively. Determine the surface area of the toy. [Use pi=3.14 ]

A solid is in the form of a right circular cylinder with a hemisphere at one end and a cone at the other end. The radius of the common base is 8 cm and the heights of the cylinderical and conical portions are 10 cm and 6 cm respectively. Find the total surface area of the solid. " " [Use pi=3.14 ]