For an edge of length \(x\), the volume of a cube is given by the formula \(V\) = \(x\)³. To calculate the edge of a cube: Count the number of cm³ in the top layer. There are 16 unit cubes.

First let’s work out the volume of the cube. A cube is different to other cuboids because all its dimensions are equal in length. However, you can still use the same formula to calculate the volume.