Q. 75.0( 2 Votes )

The radii of two

Answer :

Given : Ratio of radii of two cylinders = r1 : r2 = 3 : 2

Ratio of heights of the two cylinders = h1 : h2 = 5 : 3


To find : Ratio of CSA of the two cylinders = C1 : C2 = ?


Formula : CSA of cylinder = 2rh


Solution : CSA of first cylinder = C1 = 2r1h1


CSA of first cylinder = C2 = 2r2h2




C1 : C2 = 5 : 2


The ratio of the curved surface areas of the two cylinders is 5 : 2.


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