A well is dug whose diameter is 4m and the depth is 10m. find the quantity of earth taken out. calculate the cost of plastering the curved surface at Rs 5.00 per sq. m.
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curved surface area of cylinder = 2pirh
=2×22/7×2×10
=40×22/7
=880/7
=125.71m
cost of plastering= 125.71×5
= RS. 628.55
complete......
=2×22/7×2×10
=40×22/7
=880/7
=125.71m
cost of plastering= 125.71×5
= RS. 628.55
complete......
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