A way to see why there are only 5 regular polyhedra: we can use pentagons as faces of a po...
A first step to prove that there only five regular polyhedra. The faces can only be triang...
A way to see why there are only 5 regular polyhedra: we can use equilateral triangles as f...
A way to see why there are only 5 regular polyhedra: we can use equilateral triangles as f...
A way to see why there are only 5 regular polyhedra: we can use squares as faces of a poly...
The angle of the regular pentagon doesn’t divide 360°: you can’t tessellate the plane...
The five regular polyhedra used as dice. This image has been used in the exhibition Simmet...
