the radius and height of a right circular cylinder are in the ratio of 2:3 if the volume of the cylinder is 1617 cm².then find the radius and height of cylinder
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Let the radius of the base of the cylinder be 2x and its height be 3x.
Volume of a cylinder =
(2x)2 (3x) = 1617
x = = 3.5 cm
r = 7 cm, h = 10.5 cm
Curved surface area of the cylinder = 2rh
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