Polygons and PolyhedraEuler

Polyhedra come in many different shapes and sizes – from simple cubes or pyramids with just a few faces, to complex objects like the star above, which has 60 triangular faces. It turns out, however, that all polyhedra have one important property in common:

For example, if a polyhedron has 12 faces and 18 vertices, we know that it must have edges.