# 1. A circular well of 21m depth is dug up so that the radius of the well is 1.5m. What is the volume of the earth dug up? A. 148.50 m³ B. 170 m³ C. 162.50 m³ D.182.50 m³

2
by dannyk2015

2015-05-04T17:36:06+05:30

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Since well is cylindrical in shape,
⇒Volume of well = r²h
⇒Volume =( 22 * 1.5 * 1.5 * 21)/7
⇒Volume = 148.50 m³
Therefore,
The correct option is A. 148.50 m³  Ans.

plz mark it as the brainliest
2015-05-04T18:07:12+05:30

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Well is cylindrical because top and bottom surface are circle and the well is also circular in shape.
Height=21 m.