a closed cylindrical tank of radius 7 metre and height 3 metre is made from a sheet of metal which much sheet of metal is required
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Step-by-step explanation:
Given dimensions of closed cylindrical tank are
Height =h=1.4m
Radius =r=56cm=56/100 m =0.56m
Metal sheet required to make cylindrical tank= total surface area of the cylindrical tank
=2×pi×r(r+h)
=2×22/7×0.56(0.56+1.4)
=2×22×0.08×1.96
=6.8992 square meters
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