Answers

2016-01-29T20:07:14+05:30
Volume of cylinder=(pi)(r²h)
here height =21m
 & r=1.5m
∴ volume =(22/7)(1.5² × 21)
                =22×2.25×3
                =22×6.75     
                =148.5.
∴ the volume of the earth dug out is 148.5m³.
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