Change the angle of the cube and it would though ;)
(
Maximinimus you stick around I'll make it worth your while,
Tue 16 Jun 2009, 15:35,
archived)
It could be an octahedron, if it was a square pyramid with another one mirrored underneath
but that's somehow much less arousing geometry that the fact you can get a cube out of four three-sided pyramids.
(
_Felix 's school of dance and occult sciences,
Tue 16 Jun 2009, 15:45,
archived)