How many cubic feet are in a cubic yard?

A cubic yard is a three-dimensional measurement that represents the volume of a cube with each side measuring one yard in length. Since there are three feet in a yard, you can calculate the volume of a cubic yard in cubic feet by considering all three dimensions:

1 yard x 1 yard x 1 yard = (3 feet) x (3 feet) x (3 feet) = 27 cubic feet.

This calculation shows that a cubic yard equals 27 cubic feet, which is why this choice is the correct answer. Understanding this conversion is essential in various fields such as construction, landscaping, and any work involving materials that are measured in cubic yards, as it allows for proper estimation and planning.