Question

the ratio between the curved surface area and the total surface area of right circular cylinder is 3:4 then the ratio between the height and radius of the cylinder is​

Answer 1

Answer:

Let CSA of cylinder = 3x

TSA of cylinder = 4x

CSA of cylinder = 2πrh

TSA of cylinder = 2πr(r+h)

2πrh/2πr(r+h)=3x/4x

h/(r+h)=3x/4x

Height = 3x

Radius + Height = 4x

Radius + 3x = 4x

Radius = 4x-3x = x

Ratio between Height and Radius

3x/x =3/1 =3:1

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