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How many cubic metres of earth must be d...

How many cubic metres of earth must be dug-out to sink a well 21m deep and 6m diameter?

Text Solution

Verified by Experts

We have,
h=21m and r=3m
∴ Volume of earth`=pi r^2h`
`= 21/7xx3^2xx21`
`=594m^3`
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