How do you calculate the volume of a cuboid?

To calculate the volume of a cuboid, you multiply its three dimensions: length, width, and height. This is because volume is defined as the amount of space an object occupies, and in the case of a cuboid, these three dimensions together define that space.

Specifically, the formula length × width × height gives you the total number of unit cubes that can fit inside the cuboid. Each dimension contributes to the overall capacity; the length stretches the object in one direction, the width in another, and the height in a third. By multiplying these dimensions, you accurately account for the entire volume of the cuboid.

Other approaches, such as adding dimensions or performing other operations, do not yield a meaningful measurement of volume. Adding the dimensions would not consider the three-dimensional aspect necessary for volume calculation, and just using two dimensions would ignore one of the necessary dimensions to define the cuboid's full size.