What is the correct way to calculate volume in cubic feet?

Calculating volume in cubic feet requires multiplying three dimensions measured in feet: length, width, and height. This is because volume represents a three-dimensional space. The formula for volume in cubic feet is expressed as cubic units, specifically cubic feet, achieved by taking the measurements in feet and multiplying them together.

In this context, multiplying feet by feet by feet follows the mathematical principle for calculating volume. Each dimension (length, width, height) is indeed expressed in feet, allowing you to derive the total volume in cubic feet accurately.

The other options do not align with the proper calculation for volume in cubic feet. For instance, multiplying feet by feet results in square feet, which measures area, not volume. Similarly, using inches instead of feet, as in one of the alternatives, will yield a volume in cubic inches rather than cubic feet. Therefore, using the proper units and dimensions ensures accurate volume measurement.