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A cube made with tooth-picks and plasticine. If we make two cubes and join them up, we get...
A virtual octahedron reproduced between three mutually perpendicular mirrors..From the exh...
Here we see a plane net of a dodecahedron folding up in the 3-dimensional space to form a ...
There are five ways to pick out 8 vertices among the 20 vertices of a dodecahedron to form...
The marks on the surface of this icosahedron represent the planes of symmetry. Image used...
La famiglia dei poliedri che si ottengono scegliendo un punto per ogni spigolo di un ottae...
A cube in the corresponding kaleidoscope. Exhibit from Simmetria, giochi di specchi - Symm...
