volume_mute
Volume of Concrete for a Rectangular Foundation
publish date: 2026/05/18 12:18:51.720078 UTC
volume_mute
A concrete wall is to be poured in the shape of a rectangular solid. The wall will be 40 feet long, 8 feet tall, and 0.5 feet thick. How many cubic feet of concrete are needed?
Correct Answer
160 ft³
Explanation
Use the formula for the volume of a rectangular solid:
\[V = lwh = 40 \times 8 \times 0.5\]
Substitute \(l = 40\), \(h = 8\), and \(w = 0.5\).
\[= 40 \times 8 \times 0.5 = 320 \times 0.5 = 160 \text{ ft}^3\]
160 cubic feet of concrete are needed for the wall.
Reference
go-math-science.com