A golf ball has diameter equal to 4.1 cm. Its surface has 150 dimples each of radius 2 mm. Calc...

A golf ball has diameter equal to 4.1cm. Its surface has 150 dimples each of radius 2mm. Calculate totals area which is exposed to the surrounding assuming that the dimples are hemispherical.

A golf ball has diameter equal to 4.1cm. Its surface has 150 dimples each of radius 2mm . Calculate total surface area.

Each face of a cube has perimeter equal to 32 cm. Find its surface area and volume.

A solid metal ball of diameter 16 cm is melted and cast into smaller balls, each of radius 1 cm. The number of such balls is :

A solid metal ball of radius 8 cm is melted and cast into smaller balls, each of radius 2 cm. The number of such balls is

A solid metal ball of radius 8 cm is melted and cast into smaller balls, each of radius 2 cm. The number of balls made are ……….. .

The height of a solid cylinder is 15 cm. and the diameter of its base is 7 cm. Two equal conical holes each of radius 3 cm, and height 4 cm are cut off. Find the volume of the remaining solid.

The height of a solid cylinder is 15 cm and the diameter of its base is 7 cm. Two equal conical holes each of radius 3 cm and height 4 cm are cut off. Find the volume of the remaining solid.

From a solid cylinder of height 14cm and base diameter 7cm, two equal conical holes each of radius 2.1cm and height 4cm are cut off.Find the volume of the remaining solid.