A virtual polyhedron
One of the five regular polyhedra, the cube, reconstructed, in two colours, in the kaleidoscope of the tetrahedron: so we can see that the symmetry goup of the tetrahedron is a subgroup of index 2 in the symmetry group of the cube.
You can see a different polyhedron in the same kaleidoscope or another polyhedron in a different kaleidoscope.
From the exhibition Symmetry, playing with mirrors.
© Rosina Cavallaro
foto di Rosina Cavallaro
The image belongs to the sections...:
Groups and subgroups (Symmetry)
The symmetry group of the tetrahedron
(*332) (Symmetry)
In the yellow kaleidoscope (tetrahedron) (From the exhibitions of matematita)
