The ratio between the radius of the base and the height of a cylinder is 2:3 . Find the total surface area of the cylinder , if its volume is 1617 cm3.

Asked by  | 15th Feb, 2012, 05:49: PM

Expert Answer:

r/h = 2/3 , Volume = pie .r .r . h = 3/2 . pie . r3 = 1617
r3 = 343 , r = 7 , h = 10.5
TSA  =  2pie . r (h+r) = 2.pie.7(17.5) = 770cm2

Answered by  | 15th Feb, 2012, 06:56: PM

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