The radii of two cylinders are in the ratio 3 : 2 and their heights are in the ratio 7 : 4.calculate theratios of their volumes and of the cured surface areas.
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volume of first cylinder/volume of 2nd cylinder
=πr1^2h1/πr2^2h2
=3x)×3x)×7u/2x)×2x×4u
63/16=63:16
S1/S2=2π×3x)×7u/2π×2x)×4u=21/8
=21:8
=πr1^2h1/πr2^2h2
=3x)×3x)×7u/2x)×2x×4u
63/16=63:16
S1/S2=2π×3x)×7u/2π×2x)×4u=21/8
=21:8
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