Acronym snu
Name snubihedron,
compound of 6 tet (but not sis)
 
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Circumradius sqrt(3/8) = 0.612372
Inradius 1/sqrt(24) = 0.204124
Vertex figure [33]
General of army x3w4o
Colonel of regiment (is itself locally convex)
Dihedral angles
(at margins)
  • between {3} and {3}:   arccos(1/3) = 70.528779°
Confer sis   so   rah  
External
links
hedrondude   wikipedia   mathworld

This compound is a special (and thus rigid) case of sis. It can be vertex-inscribed into rah in the same way as sis (with full rotational freedom) can be vertex inscribed into risdoh.

By coincidence, snu is nothing but a 3-so-compound (given below as type B).


Incidence matrix

(Type A)

 24 |  1  2 |  3 || 1
----+-------+----++--
  2 | 12  * |  1 || 1
  2 |  * 24 |  2 || 1
----+-------+----++--
  3 |  1  2 | 24 || 1
----+-------+----++--
 4 |  2  4 |  4 || 6

(Type B)

 24 |  1  2 |  3 || 1
----+-------+----++--
  2 | 12  * |  1 || 1
  2 |  * 24 |  2 || 1
----+-------+----++--
  3 |  1  2 | 24 || 1
----+-------+----++--
 8 |  4  8 |  8 || 3

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