Images for Mathematics

A virtual polyhedron

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A stella octangula, in the kaleidoscope corresponding to the symmetry group of the cube. We obtain this polyhedron with two regular tetrahedra arranged in such a way that the edges of the first one are orthogonal to the edges of the other one in their midpoint.
You can see an other polyhedron in the same kaleidoscope or a polyhedron in a different kaleidoscope.
Exhibit of the exhibition Simmetria, giochi di specchi - Symmetry, playing with mirrors.

The image belongs to the sections...:
Duality (3D geometry)
The symmetry group of the cube (*432) (Symmetry)
In the blue kaleidoscope (cube) (From the exhibitions of matematita)


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