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A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required? |
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Answer» Total surface area of cylinder = 2πr (r + h) = [ 2 x (22/7) x 7(7 + 3) ] m2 = 440 m2 Thus, 440 m2 sheet of metal is required. |
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