Question

the ratio between the CSR and TSA of a right circular cylinder is1:2 find the ratio between the height and the radius of the cylinder

Answer 1

Heya...

Here's your answer....

given, csa : tsa of cylinder = 1:2

         2πrh / 2πr(r+h)  = 1/2

            h/(r+h) = 1/2

by cross multiplication, we get

            2h = r+h

            2h-h = r

therefore h=r

by calculating, we get height is equal to radius. then ratio of their height and radius is      

    height of cylinder : radius of cylinder = 1:1

Thanks...!!!

XD

Sorry baby 'wink'