A square-based pyramid has eight edges, 4 × 2 = 8 \(F\) is the number of faces. A cuboid has six faces. \(V\) is the number of vertices. A cuboid has eight vertices. \(E\) is the number of edges.

For example a cube has 12 edges. Vertices - A vertex is a corner ... You're now a square based pyramid with 4 triangular faces and a square face for your bottom. You can get pyramids with ...