Find the cost of painting curved surface of a cylinder pillar with diameter 1.4m and height 5m at the rate of rupees of 10 per meter square
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d=1.4m=>r=1.4/2 h=5m
CSA of a cylinder=2πrh
Substituting the values,
2x22/7x1.4/2x5
=22 meter square
Cost of painting per meter square=Rs.10
Cost of painting=22x10
=Rs.220
Hope it helps:)
CSA of a cylinder=2πrh
Substituting the values,
2x22/7x1.4/2x5
=22 meter square
Cost of painting per meter square=Rs.10
Cost of painting=22x10
=Rs.220
Hope it helps:)
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