Question

Find the curved surface area of a hollow cylinder and find its volume.

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Answer 1

If R, r are the outer and inner radii respectively and t is the thickness then R = r + t, r = R - t, t = R - r.

• The volume of the material = π(R2 - r2) × Height. The inner curved surface area = 2πr × Height, the outer curved surface area = 2πR × Height.

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