How many cubic metres of earth must be dug-out to sink a well 21 m deep and 6 m diameter?
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Answered by
14
answer=>volume of the well=volume of earth that must be dug out=>πr^2h=22/7*3*3*21=22*27=594cm^3
Answered by
7
volume of cylinder =pi.r.r.h= 3.14×3×3×21=594m3
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