Question

A rectangle paper of length 14 cm and width 10 cm is revovled along its width and a cylinder is formed find the volume of the cylinder ​

Answer 1

Answer:

A cylinder is formed by rolling a rectangle about its width. Hence the width of the paper becomes height and the radius of the cylinder is 20 cm.

Height of the cylinder = h = 14 cm

Radius = r = 10 cm

Volume of the cylinder =V = \pi r^2hV=πr

2

h

=\frac{22}{7} \times 10 \times 10 \times 14=

7

22

×10×10×14

= 22 \times 100 \times 2=22×100×2

= 4400 cm^3=4400cm

3

Hence, the volume of the cylinder is 4400 cm^34400cm

3

.