What length of a solid cylinder 2 cm in diameter must be taken to recast into a hollow cylinder of length 16 cm, external diameter 20 cm and thickness 2.5 mm?

What length of solid cylinder 2 cm in diameter must be taken to recast into a hollow cylinder of external diameter 20 cm, 0-25 cm thick and 15 cm long?

What length of solid cylinder 2cm in diameter must be taken to cast into a hollow cylinder of external diameter 12cm,0.25cm thick and 15cm long? (a)42.3215cm,0.25cm thick and 1544.0625cm (d) 44.602cm

The diameter of a solid sphere is 6 cm. It is melted and recast into a solid cylinder of height 4 cm. Find the radius of cylinder.

Find the number of coins, 1.5 cm in diameter and 2 mm thick, to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm.

The height of a hollow cylinder is 14 cm. If external diameter is 16 cm and total curved surface area of the hollow cylinder is 1320 sq. cm, then its internal diameter is

Calculate surface area of a solid cylinder of diameter 4 cm and height 20 cm in mm^2

The radii of the internal and external surfaces of a hollow spherical shell are 6 cm and 4 cm respetively. If it is melted and recast into a solid cylinder of height 4/3 cm, find the diameter of the cylinder

A spherical shell of lead, whose external diameter is 18 cm, is melted and recast into a right circular cylinder, whose height is 8 cm and diameter 12 cm. Determine the internal diameter of the shell.