A parallelepiped with edges 3,4,7, that can be divided in six equal pieces with three stra...
Il prisma al centro ha uguale base e altezza doppia (e volume doppio) rispetto al prisma a...
Accostando quattro di questi poliedri si può ricostruire un tetraedro regolare. Peraltro,...
Accostando a due specchi ortogonali un tetraedro le cui facce sono due triangoli equilate...
Accostando quattro di questi poliedri si può ricostruire un tetraedro regolare. Peraltro,...
The two polyhedra in the figure can be made by putting together two copies of this polyh...
Four regular tetrahedra and a regular octahedron to make another regular tetrahedron of do...
Four regular tetrahedra and a regular octahedron to make another regular tetrahedron of do...
If we put between two perpendicular mirrors this polyhedron, we get a regular octahedron.
If we put together a regular tetrahedron and another tetrahedron of this type, we can get ...
