How many cubic metre of earth must be dug out to sink a well of 22.5 m deep and diametre 7m? Also find the coast of plastering the inner csa at rs 3 per sq. Metre
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deep= 22.5m and radius = 7/2 m
therefore volume of the well = 22/7*7/2*7/2*22.5
=>866.25m3 to be dig
csa => 2*22/7*7/2*22.5 = 495 m2
therefore cost = 495*3= rs.1485
I hope it will help u
therefore volume of the well = 22/7*7/2*7/2*22.5
=>866.25m3 to be dig
csa => 2*22/7*7/2*22.5 = 495 m2
therefore cost = 495*3= rs.1485
I hope it will help u
dheeraj68:
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select it as a brainliest
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