Question

The height and radius of a cylinder are in the ratio 7:5 and its volume is 550cm 3 .Find the radius of its base

Answer 1

Step-by-step explanation:

given,

height : radius = 7 : 5

let, constant be x

so, h = 7x

r = 5x

now, vol ,= πr.rh

so, πr.rh = 550

22/7 .25 x.x .7x =550

22.25x.x.x = 550

x.x.x =1

x = 1

radius= 5 unit