Question

Find the volume of a cylinder of diameter 42 cm and height 5cm

Answer 1

Volume of cylinder =phi *r^2*h
=phi*(42/2)^2*5
=3.14*(42/2)^2*5
=6923.7cm^3

Answer 2

Answer:

Volume of the cylinder is 6930 cm².

Step-by-step explanation:

Given that, the diameter of the cylinder is 42 cm and height is 5 cm.

We know that,

• Radius =Diameter/2

Then,

Radius of the cylinder = 42/2 = 21 cm.

Formula used :

${\boxed{\sf{Volume\:of\: cylinder=\pi\:r^2h}}}$

Volume of the cylinder,

= πr²h

= (22/7) × 21×21×5 cm³

= 22×3×21×5 cm²

= 6930 cm².

Therefore, the volume of the cylinder is 6930 cm².