# A circular well is dug. Its diameter is 3 1/2m and its depth is 6 m. What is the lateral surface area of the well? What is the volume of the earth removed to make the well?

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by charlotteds9

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by charlotteds9

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Diameter=3.5 m

r=1.75

h=6 m

lateral surface area of a cylinder=2πrh=65.97 m

volume=πr²h=57.73 m³

so 57.73 m³ soil will remove

r=1.75

h=6 m

lateral surface area of a cylinder=2πrh=65.97 m

volume=πr²h=57.73 m³

so 57.73 m³ soil will remove

Lateral surface area = 2*pi*r*h = 2*3.14*1.75*6 = 65.94 m^2

Volume of earth removed = pi*r^2*h = 3.14*1.75*1.75*6 = 57.7 m^3

Volume of earth removed = pi*r^2*h = 3.14*1.75*1.75*6 = 57.7 m^3