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Polytopes of Type {18,20}

This page is part of the Atlas of Small Regular Polytopes
(See Other Polytopes of Rank 3)

There are 3 polytopes of this type in this atlas. They are :
  1. {18,20}*720a (SmallGroup(720,137))
  2. {18,20}*720b (SmallGroup(720,394))
  3. {18,20}*1440 (SmallGroup(1440,4569))