Acronym	hehad
Name	hexadecahemidecateron, vertex figure of thox
Field of sections	©
Circumradius	1/sqrt(2) = 0.707107
Inradius wrt. pen	1/sqrt(10) = 0.316228
Inradius wrt. hex	0
Vertex figure	©
Coordinates	(1/sqrt(2), 0, 0, 0, 0)   & all permutations, all changes of sign
Surface	[5+sqrt(5)]/6 = 1.206011
General of army	tac
Colonel of regiment	tac
Dihedral angles (at margins)	at tet between pen and hex:   arccos(1/sqrt(5)) = 63.434949°
Face vector	10, 40, 80, 80, 21
Confer	Grünbaumian relatives: 2hehad   general polytopal classes: segmentotera   non-orientable   analogs: demicross hOn
External links

Incidence matrix

 10 ♦  8 | 24 | 32 |  8 4
----+----+----+----+-----
  2 | 40 ♦  6 | 12 |  4 3
----+----+----+----+-----
  3 |  3 | 80 |  4 |  2 2
----+----+----+----+-----
♦ 4 |  6 |  4 | 80 |  1 1
----+----+----+----+-----
♦ 5 | 10 | 10 |  5 | 16 *
♦ 8 | 24 | 32 | 16 |  * 5