A stella octangula
A model of stella octangula, made with tooth-picks. The two colours show the vertices of a octahedron (in red) and the vertices of a cube (in green), in dual position.
© matematita
foto di Federica Fanoni e Riccardo Moschetti
The image belongs to the sections...:
Duality (3D geometry)
Two tetrahedra in a cube (3D geometry)