Question

A rectangular sheet of paper 100 cm x 66 cm is rolled along its width and a
cylinder is formed . Find the volume of the cylinder .(use ∏ = 22/7 )

Answer 1

Answer:

2772cm3

explanation:

If the sheet is rolled along its length then the circumference will be equal to the length of the rectangle.

∴2πr=44

∴r=

2×

7

22

44

∴r=7 cm

Also, height of the cylinder will be equal to the breadth of the rectangle.

∴h=18 cm

∴ volume of the cylinder =πr2h

=

7

22

×7

2

×18