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It is required t,o make a c/.osed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. How many square metres of the sheet are required for the same?

It is required t,o make a c/.osed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. How many square metres of the sheet are required for the same?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
Base diameter = 140 cm = 1.4 m. Height (h) = 1m. :. Base radius (r) = 0.7 m 'lbtal surface area (required metal sheet) = 2nr(r + h) = 2 >< 22 >< 0.7 (0.7 + 1) m2 7 = 4.4 >< 1.7 m2 = 7.48 m2•

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