Answers

2015-03-26T17:17:50+05:30
We know that volume of a sphere = πr²h
According to the question, r = 1.5m; h = 21m
Thus volume of Earth dug = 22/7 x 1.5 x 1.5 x 21
= 22 x 1.5 x 1.5 x 3
= 148.5 m³

Hope that helps !!
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