Then the judge writes 12 under edges, and the corners of the cube are highlighted next and 8 recorded under vertices. NARRATOR: Edges - that's twelve. Right, what about corners, or vertices - that ...

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.