Acronym gidhid
TOCID symbol E*|J
Name great dodecahemidodecahedron
 
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Circumradius (sqrt(5)-1)/2 = 0.618034
Vertex figure [5/3,10/3,5/2,10/3]
General of army id
Colonel of regiment gid
Dihedral angles
  • between {5/2} and {10/3}:   arccos(1/sqrt(5)) = 63.434949°
Confer
Grünbaumian relatives:
2gidhid   gid+geihid+gidhid  
External
links
hedrondude   wikipedia   mathworld

As abstract polytope gidhid is isomorphic to sidhid, thereby replacing pentagrams by pentagons and decagrams by decagons.


Incidence matrix according to Dynkin symbol

hemi( x5/3x5/3o5/2*a )

30 |  4 |  2 2
---+----+-----
 2 | 60 |  1 1
---+----+-----
 5 |  5 | 12 *
10 | 10 |  * 6

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