Question

Find the volume of cylinder if h is 5 cm r is 4.2cm

Answer 1

volume of a cylinder = 1/3πr^2h

=1/3 x 22/7 x 4.2 x 4.2 x 5

=1/3 x 22 x 0.6 x 21

=22 x 0.2 x 21

= 22 x 4.2

= 92.4