Question

Find the volume of cylinder whose height is 21cm and radius is 10cm

Answer 1

volume=πr^2h
hence volume of cylinder will be=22/7*10*10*21
now and is=6600cm^2

Answer 2

Hi,

Here is your answer,

Height = 21 cm 

Radius = 10 cm

Volume of cylinder = πr²h

= 22/7 × (10)² × 21

= 22/7 × 10 × 10 × 21             { 7 × 3 = 21 } Cancel 

So, =  22 × 100 × 3

= 22 × 300

= 6600 cm³