Question

A rectangular paper of width 21 cm is rolled along its width and a cylinder of radius 30 cm
is formed. Find the volume of the cylinder. Justify your answer.

Answer 1

Answer:

your answer is in the attachment

I hope it is helpful for you..

Answer 2

A rectangular paper of width 21 cm is rolled along its width to form a cylinder.

Height of cylinder = h= 30 cm= width of rectangular paper.

And

Radius of cylinder = 30 cm

Volume of cylinder = πr^2h

= 22/7 × 30×30 21

= 22 × 30 × 30 × 3

= 22 × 900 × 3

= 22 × 2700

= 59400 cm^3

Hence , volume of cylinder is 59400 cm^3