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a cylinder well is 25 meters deep and has a diameter of 1.8 meters. Approximately how many cubic meters of soil were dug our to make the well?
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a cylinder well is 25 meters deep and has a diameter of 1.8 meters. Approximately how many cubic meters of soil were dug our to make the well?

User Ricardo Canelas
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8.3k points

1 Answer

4 votes
The formula for volume of a cylinder is V= PI x r^2 x H

r = radius = 1/2 diameter = 1/2*1.8 = 0.9 meters
Height = 25

Volume = PI x 0.9^2 x 25
= PI x 0.81 x 25
= PI x 20.25
= 63.62 cubic meters
User Jacobo
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8.7k points
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