A stella octangula
The stella octangula is made of two tetrahedra that are disposed in such a way that their edges are perpendicular in the midpoints. The vertices of the stella octangula are the vertices of the cube. The stella octangula can be described also as a regular octahedron with 8 regular tetrahedra with the same edge put on its faces.
© matematita
immagine di Gian Marco Todesco
The image belongs to the sections...:
Duality (3D geometry)
Two tetrahedra in a cube (3D geometry)
Further information:
http://www.toonz.com/personal/todesco
