The top face may be attached to an edge of the front or back or left or right face. The top face of the cube does not touch the base face. On the net the top face must not touch an edge or a ...

For all polyhedra the number of edges is two less than the sum of the number of vertices and faces. This is shown in the formula \(E\) = \(V\) + \(F\) – 2 The flat surface of a cube is a face.