Hendecagonal-tetrahedral duoprism

The hendecagonal-tetrahedral duoprism or hentet is a convex uniform duoprism that consists of 11 tetrahedral prisms and 4 triangular-hendecagonal duoprisms. Each vertex joins 2 tetrahedral prisms and 3 triangular-hendecagonal duoprisms.

Vertex coordinates
The vertices of a hendecagonal-tetrahedral duoprism of edge length 2sin(π/11) are given by all even sign changes of the last three coordinates of: where j = 2, 4, 6, 8, 10.
 * $$\left(1,\,0,\,\frac{\sqrt2\sin\frac\pi{11}}{2},\,\frac{\sqrt2\sin\frac\pi{11}}{2},\,\frac{\sqrt2\sin\frac\pi{11}}{2}\right),$$
 * $$\left(\cos\left(\frac{j\pi}{11}\right),\,±\sin\left(\frac{j\pi}{11}\right),\,\frac{\sqrt2\sin\frac\pi{11}}{2},\,\frac{\sqrt2\sin\frac\pi{11}}{2},\,\frac{\sqrt2\sin\frac\pi{11}}{2}\right),$$