Acronym sriphi
Name small retropental hecatonicosachoron
Cross sections
 ©
Circumradius sqrt[5+2 sqrt(5)] = 3.077684
General of army rox
Colonel of regiment rox
Confer
general polytopal classes:
noble polytopes  
External
links
hedrondude   WikiChoron  

As abstract polytope sriphi is isomorphic to graphi, thereby replacing decagons by decagrams, resp. by replacing sird by gird.


Incidence matrix

720 |   10 |   10  10 |  10
----+------+----------+----
  2 | 3600 |    2   2 |   4
----+------+----------+----
  4 |    4 | 1800   * |   2
 10 |   10 |    * 720 |   2  {10}
----+------+----------+----
 60 |  120 |   30  12 | 120  sird

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