Calculate the volume of a cube with a side length of 3 units.

To find the volume of a cube, you use the formula: Volume = side length × side length × side length, or simply Volume = side length³. In this case, the side length of the cube is given as 3 units.

Performing the calculation:

Volume = 3 × 3 × 3 = 27 cubic units.

This means the correct answer reflects the three-dimensional space occupied by the cube, which is accurately calculated as 27 cubic units. Understanding this formula is crucial, as it is a foundational concept in geometry, particularly when working with three-dimensional shapes.