Polytopes of Type {2,20,18}

This page is part of the Atlas of Small Regular Polytopes
(See Other Polytopes of Rank 4)

There are 2 polytopes of this type in this atlas. They are :
  1. {2,20,18}*1440a (SmallGroup(1440,1584)) (Universal)
  2. {2,20,18}*1440b (SmallGroup(1440,4569)) (Universal)