A solid is a cone mounted on a hemisphere. Radius=6 cm and total height=14 cm. Surface area?

A toy is in the form of a cone mounted on a hemisphere of diameter 7 cm. The total height of the toy is 14.5 cm. Then the volume of the toy is (π=22/7):

The surface area of a sphere is 616 sq. cm, then what will be its radius?

A solid sphere of radius 3 cm is melted to form a hollow cylinder of height 4 cm and external diameter 10 cm. What is the thickness of the cylinder?

The length of a diagonal of a cuboid is 11 cm. 63. The surface area is 240 square cm. What is the sum of its length, breadth and height ?

A cube whose edge is 14 cm long has on each of its faces a circle of 7 cm radius painted yellow. What is the total area of unpainted surface ? (Take π = 22/7)