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Surface Area of Hollow Cylinder

Ratio of heig...

Question

Ratio of height to base radius of a cylinder is 1:2. The ratio of total surface of cylinder to curved surface of cylinder is

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Solution

Total surface of cylinder/ Curved Surface area = (2πrh + 2π $r^{2}$ ) / 2πrh = 1+(r/h) = 1 + 2 = 3 : 1

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Surface Area of Hollow Cylinder

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