it is required to make a closed cylindrical tank of height 2 metre and base of radius 77 CM from a metal sheet.h
ow many square metres of metal sheet is required
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=22/7*77*77*2/100
=22*11*77*1/50
=11*11*77*1/25
=121*77/25
=372.68cm2
=3.7268m2
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