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If we cut a cube along a plane perpendicular to the rotation axis of order four (the one t...
A wooden model of the cube, cut triangles (we can't get rectangle or obtuse-angled triangl...
A wooden model of the cube, cut in rectangles. See other sections.
A wooden model of the cube, cut in rectangles. See other sections.
A wooden model of the cube, cut in pentagons; these pentagons have a couple of parallel si...
A wooden model of the cube, cut in order to get a parallelogram. See other sections.
A wooden model of the cube, cut in order to get a parallelogram. See other sections.
From the exhibition "Giochi di luce e di specchi - Mirror and light tricks", organized in ...
If we cut the surface of a cube in a particular way, we get an isosceles triangle.
If we cut the surface of a cube in a particular way, we get a triangle: if the plane is pe...
problems about polyhedra