The radii of two cylinders are in the ratio of 2:3 and their heights are in the ratio 5:3. Find the ratio of their curved surface area
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Answer:
r1:r2=2:3
hi: h2 = 5:3
CSA=2πr1h1:2πr 2h 2
= 2πx2x5:2πx3x3
20π:18π = 10:9 is the ratio of CsA's
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