Question

The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm. How many litres of water can it hold? (1000 cm³ = 1l)

Answer 1

Here, h = 25 cm, 2πr = 132 cm. 2πr = 132 

⇒ 2 × 22/ 7 × r = 132 

⇒ r = 132x 7/ 2 x 22 cm = 21 cm 

Volume of the cylinder = π r²h = 22/ 7 × 21 × 21 × 25 cm³ 

= 34650 cm³ 

= 34650/ 1000 litres = 34.65 litres Ans.