a closed cylinder tank of radius 7 M and height 3 metres is made from a sheet of metal . how much sheet of metal is required
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sheet required = 2πr (r+h)
= 2*22/7*7 (7+3)
= 2*22*10
=44*10
=440
= 2*22/7*7 (7+3)
= 2*22*10
=44*10
=440
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