Question
If the volume of a cylinder is 486Ï€ and the ratio of
radius to its height is 3:2 then find the curved surface area of cylinder?Solution
Volume of cylinder = 486Ï€ ⇒ Ï€r2h = 486Ï€ ⇒ r2h = 486 units ⇒ 9x2*2x = 486 units ⇒ x3 = 27 ⇒ x = 3 Radius = 9 units & height = 6 units. Curved surface area = 2Ï€rh Curved surface area = 108Ï€ unit ² Â
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