The radii of two cylinders are in ratio 1:3 and their heights are in the ratio 3:2 what is the ratio of their curved surface area
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The first cylinder radius =1
height =3
csa of cylinder =2πrh
=2×3.14×1×3
=18.84
The curved surface area of 1st cylinder =18.84
The second cylinder radius =3
height =2
csa of cylinder =2πrh
=2×3.14×3×2=37.68
The curved surface area of the 2nd cylinder =37.68
The ratio of their csa =18.84:37.68
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