A tetrahedron
A regular tetrahedron.
This polyhedron can be obtained by sectioning a hypercube with a 3-space perpendicular to the direction that joins two opposite vertices. Here you can see a section with a parallel 3-space, or the analogous phenomenon on a cube.
© matematita
immagine di Francesca Lazzaroni
The image belongs to the sections...:
Images of the exhibition (From the exhibitions of matematita)
Sections of a hypercube (4D geometry)
