Hendecagonal duotruncatoprism

Hendecagonal duotruncatoprism
(OFF file)
Rank	4
Type	Isogonal
Notation
Bowers style acronym	Hendtep
Elements
Cells	121 tetragonal disphenoids, 242 wedges, 121 rectangular trapezoprisms, 22 dihendecagonal prisms
Faces	484 isosceles triangles, 484 isosceles trapezoids, 242+242 rectangles, 22 dihendecagons
Edges	242+242+484+484
Vertices	484
Vertex figure	Mirror-symmetric bi-apiculated tetrahedron
Measures (based on icosidigon edge length 1 and same radius ratio as uniform-derived hendecagonal duoexpandoprism)
Edge lengths	Edges of icosidigons (242+242): 1
	Edges of pseudo-hendecagons (484): $2(1+\cos {\frac {\pi }{11}})\approx 3.899$
	Lacing edges (484): ${\frac {\sqrt {2}}{2\sin {\frac {\pi }{22}}}}\approx 4.96861$
Circumradius	${\frac {\sqrt {3+2\cos {\frac {\pi }{11}}}}{2\sin {\frac {\pi }{22}}}}\approx 7.79216$
Central density	1
Related polytopes
Army	Hendtep
Regiment	Hendtep
Dual	Hendecagonal duotruncatotegum
Abstract & topological properties
Euler characteristic	0
Orientable	Yes
Properties
Symmetry	I2(11)≀S2, order 968
Convex	Yes
Nature	Tame

The hendecagonal duotruncatoprism or hendtep is a convex isogonal polychoron and the tenth member of the duotruncatoprism family. It consists of 22 dihendecagonal prisms, 121 rectangular trapezoprisms, 242 wedges, and 121 tetragonal disphenoids. 2 dihendecagonal prisms, 2 rectangular trapezoprisms, 3 wedges, and 1 tetragonal disphenoid join at each vertex. It can be obtained as the convex hull of two orthogonal hendecagonal-dihendecagonal duoprisms whose dihendecagonal prisms have a smaller radius than their hendecagonal prisms. However, it cannot be made uniform.