Combination of cylinder and hemisphere : A solid is in the form of a cylinder with hemispherical end
Channel: Doubtnut
Date: 2020-01-19

Combination of cylinder and hemisphere : A solid is in the form of a cylinder with hemispherical ends. The the whole length of the solid is 108 cm and the diameter of the hemispherical ends is 36 cm; Find the cost of polishing the surface of the solids at the rate of 7 paise per sq. cm.