Pyritohedron
Автор:
Jesse Russell,Ronald Cohn, издатель:
"VSD", ISBN:
978-5-5113-2301-5
High Quality Content by WIKIPEDIA articles! In geometry, a pyritohedron is an irregular dodecahedron with pyritohedral (Th) symmetry. Like the regular dodecahedron, it has twelve identical pentagonal faces, with three meeting in each of the 20 vertices. Ho