|Bowers style acronym||Hent|
|Faces||22 isosceles triangles|
|Vertex figure||2 hendecagons, 11 squares|
|Measures (edge length 1)|
|Number of external pieces||22|
|Level of complexity||3|
|Conjugates||Small hendecagrammic tegum, Hendecagrammic tegum, Great hendecagrammic tegum, Grand hendecagrammic tegum|
|Abstract & topological properties|
|Symmetry||I2(11)×A1, order 44|
The hendecagonal tegum or hent, also called a hendecagonal bipyramid, is a tegum with a hendecagon as the midsection, constructed as the dual of a hendecagonal prism. It has 22 isosceles triangles as faces, with 2 order–11 and 11 order–4 vertices. .
In the variant obtained as the dual of a uniform hendecagonal prism, the side edges are times the length of the edges of the base hendecagon. Each face has apex angle and base angles . If the base hendecagon has edge length 1, its height is .