A cylindrical tank of height 1m and base diameter 140 which in open at the top is to be made from a metal sheet.How many square meters of the sheet are required for the same ? Also find the cist if sheet for it,if a sheet measuring 1m² cost Rs100
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Answer:
Total Surface Area of cylinder is 2πrh+2πr
2
=2πr(h+r)=2×
7
22
×(70)(100+70)=7.48 m
2
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