Question

A rectangular paper of width 14 cm is rolled along it's length and a cylinder is formed of radius 20cm is formed . Find the volume of cylinder

Answer 1

given ÷ a rectangular paper of width 14 cm is rolled along its width to form a cylinder ,so

height of cylinder = h = 14 cm = width of the rectangular paper

and

radius of cylinder ( Given ) = r = 20 cm

and

We know volume of cylinder = π r2 h , so

volume of our given cylinder

= 227 × 20×20 ×14 = 22×20 ×20×2 =17

600 cm ³ ( ans )

Answer 2

$\huge\fbox{ \red{ \purple{❝}Solution</p><p> \purple{❞}}}$

A rectangular paper of width 14 c is rolled along its width to form a cylinder.

Height of cylinder = h= 14 cm= width of rectangular paper.

Therefore,

Radius of cylinder = r= 20 cm.

Volume of the cylinder = πr² h

$\implies \: \frac{22}{7} \times 20 \times 20 \times 14$

$\space$

$\bf \red{\implies }\: \green{17600 \pink{{cm}^{3} }}$

∴ Volume of the cylinder = 17600 cm³

Hope it helps!!