Westonci.ca is the ultimate Q&A platform, offering detailed and reliable answers from a knowledgeable community. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

A wooden solid is made up of a cylinder with hemispherical ends. If the whole length of the solid is 84 cm and radius of each hemispherical end is 7 cm, find the cost of polishing its surface at the rate of 50 paisa per sq. cm. ​