Question

the radius and height of cylinder are in ratio 5:7 . if its volume is 4400 cubic cm, find the radius of the cylinder. ​

Answer 1

Let r = radius of cylinder.

h = height of cylinder.

according to question...

r/h=5/7

h=7r/5

now..

V=pi*h*r^2

V=7r^3*pi/5=4400

r=[5*4400/(7*pi)]^(1/3)

hence r= 40cm

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Answer 2

i think this will help you