Question

If the ratio of radii of two cylinders of equal height is 1:3, find the ratio of their curved surface areas.

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Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

1:3

Step-by-step explanation:

Curved surface area of cylinder = 2πrh

Area ∝ Radius   (For equal heights)

This Area, A₁ : A₂ = r₁ : r₂ = 1:3

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