Q27 of 189 Page 512

The radii of two cylinders are in the ratio 2 :3 and their heights are in the ratio 5 :3. The ratio of their curved surface area is

Let the radii be 2x and 3x respectively and heights be 5y and 3y respectively.


Curved surface area of a cylinder =


⇒ Ratio of their Curved surface area =

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