Question

A one side open cylinderical drum has inner radius 28 cm. and height 2.1 m. How much water you can store in the drum. Express in litres. (1 litre = 1000 cc.)​

Answer 1

volume is equal to πr²h

ie

3.14 × 28² × 210

=516,969.6

divide the result by 1000

516.969litres

Answer 2

Hence, 5174.4litres of water can be stored in the drum.

Hope it helps..

Have a great day :)