Acronym	tigid
TOCID symbol	tE
Name	truncated great dodecahedron
VRML	⭳ ©
Circumradius	sqrt[(17+5 sqrt(5))/8] = 1.876844
Vertex figure	[5/2,102]
General of army	f3x5o
Colonel of regiment	(is itself locally convex – no other uniform polyhedral members)
Dihedral angles	between {5/2} and {10}:   arccos(-1/sqrt(5)) = 116.565051° between {10} and {10}:   arccos(1/sqrt(5)) = 63.434949°
Face vector	60, 90, 24
Confer	Grünbaumian relatives: 2tigid   variations: o5/2f5x   decompositions: gad || tigid   general polytopal classes: Wythoffian polyhedra
External links

As abstract polytope tigid is isomorphic to quit sissid, thereby replacing pentagrams by pentagons and decagons by decagrams.

Note that tigid can be thought of as the external blend of 1 gad + 12 pecues + 12 stappies. This decomposition is described as the degenerate segmentochoron xx5ox5/2oo&#xt.

Incidence matrix according to Dynkin symbol

o5/2x5x

.   . . | 60 |  2  1 |  1  2
--------+----+-------+------
.   x . |  2 | 60  * |  1  1
.   . x |  2 |  * 30 |  0  2
--------+----+-------+------
o5/2x . |  5 |  5  0 | 12  *
.   x5x | 10 |  5  5 |  * 12

snubbed forms: o5/2β5x, o5/2x5β, o5/2β5β

o5/3x5x

.   . . | 60 |  2  1 |  1  2
--------+----+-------+------
.   x . |  2 | 60  * |  1  1
.   . x |  2 |  * 30 |  0  2
--------+----+-------+------
o5/3x . |  5 |  5  0 | 12  *
.   x5x | 10 |  5  5 |  * 12