Truncated hendecagonal duoprism

The truncated hendecagonal duoprism or tahendip is a convex isogonal polychoron that consists of 22 truncated hendecagonal prisms and 121 tetragonal disphenoids. 1 tetragonal disphenoid and 3 truncated hendecagonal prisms join at each vertex. It can be formed by truncating the hendecagonal duoprism.

It can also be obtained as the convex hull of 2 semi-uniform hendecagonal-icosidigonal duoprisms chosen such that the icosidigonal and hendecagonal prisms have the same circumradius. if the icosidigons of this duoprism have edge length 1, the hendecagons have edge length $$1+\frac{1}{\cos\frac{\pi}{11}} ≈ 2.04222$$.

Using the ratio method, the lowest possible ratio between the longest and shortest edges is 1:$$\frac{2\cos\frac{\pi}{11}}{\sqrt2}$$ ≈ 1:1.35693.