Question

The CSA of a right circular cylinder is 4.4 m^2. If radius of the base of the cylinder is 0.7 m, find its height.

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Answer 1

Hi there ^_^

⬇SOLUTION⬇

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Suppose the height of the cylinder = h m

From question, r = 0.7 m = 7/10 m

and surface area of cylinder = 4.4 m^2 = 44/10 m^2 = 22/5 m^2

The curved surface area (CSA) of a cylinder = 2 × pi × r × h m^2

Therefore, 22/5 = 2 × 22/7 × 7/10 × h

So, h = 22/5 × 10/2×22 = 1 m

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Hope it helps you out :)