a circular well with a diameter of 6 metres , is dug to a depth of 24 metres . what is the volume of the earth dug out ?
"solution volume = π r 2 h ‹ = › ( 22 / 7 × 3 × 3 × 24 ) m 3 ‹ = › 678.6 m 3 . answer a"
volume_cylinder(divide(6, const_2), 24)