Part of the
Atlas of Small Regular Polytopes
Polytopes of Type {2,2,4,21}
See
other polytopes
of rank 5
Polytopes of this Type
2 in this atlas
{2,2,4,21}*672
·SmallGroup(672,1263) · universal
{2,2,4,21}*1344
·SmallGroup(1344,11701) · universal