Fair dice
Two unusual dice: they are polyhedra characterized by the fact that, if we take any couple of vertices, there's a rotation of the polyhedron that sends the first face into the other one. This granted the impartiality of the die.
© matematita
The image belongs to the sections...:
Playing (Anthology of images)
Playing (Symmetry)
Prisms, antiprisms, pyramids, dipyramids (3D geometry)
