Question

find the radius of a cylinder whose volume is 3080cm and height is 20cm

Answer 1

hope you got it if any doubt ask

Answer 2

Let the radius be r centimetres
therefore,
pi * r^2 *h =3080
or, r^2= 3080*(7÷22)*(1÷20)
or, r^2 = 7*7
or, r = 7
therefore, the radius is 7cm.