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How many cubic metres of earth must be dug-out to sink a well 21 m deep and 6 m diameter? |
Answer» Given, Height of cylinder = 21 m Diameter of well = 6 m radius of well = \(\frac{6}{2}\) = 3 m so, Amount of earth can be dug out from this well = πr2h = \(\frac{22}{7}\) x 3 x 3 x 21 = 594 m3 |
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