giving metal

A cylindrical well is 20 meters deep and has a diameter of 1.5 meters. Approximately how many cubic meters of soil were dug out to make the well? (Use π = 3.14.)
11.78 cubic meters
35.33 cubic meters
121.20 cubic meters
141.30 cubic meters

Question

giving metal

A cylindrical well is 20 meters deep and has a diameter of 1.5 meters. Approximately how many cubic meters of soil were dug out to make the well? (Use π = 3.14.)
 11.78 cubic meters 
35.33 cubic meters 
121.20 cubic meters 
141.30 cubic meters

igreen · Answer

Find the volume.

igreen · Answer

$\sf V = \pi r^2 h$

Plug in what we know:

$\sf V = (3.14)(0.75)^2(20)$

Simplify

anonymous · Answer

Are you still on this question?