Question

the radii of 2 right circular cylinder are in the ratio of 2:3 and their height are in the ratio of 5:4 then the ratio of curved surface area is​

Answer 1

Answer:

R1 :R2 = 2:3

H1 : H2 = 5:4

Step-by-step explanation:

CSA = 5:6

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Answer 2

Answer:

Let r1 = 2x, r2 = 3x

h1 = 5h, h2 = 4h

Curved surface area of cylinder = 2 rh

ratio of curved surface area = s1/s2

                                              = 2π×2x×5h÷ 2π×3x×4h

                                              = 2×5÷3×4

                                              = 5/6

                                              or 5:6