Truncated triangular prism

The truncated triangular prism is a polyhedron formed by truncating the vertices of the triangular prism. It has 6 isosceles triangles, 3 rectangular-symmetric octagons and 2 ditrigons as faces.

The canonical variant with midradius 1 has four edge lengths: one of length $$\frac{4\sqrt3}{9} ≈ 0.76980$$, one of length $$\frac{10\sqrt3}{9} ≈ 1.92450$$, one of length $$\frac{4\sqrt3}{3} ≈ 2.30940$$ and the other of length $$\frac{5\sqrt3}{12} ≈ 0.72169$$. It has regular hexagons in place of ditrigons.

Vertex coordinates
The vertices of a canonical truncated triangular prism of midradius 1 are given by:
 * $$\left(±\frac{\sqrt3}{3},\,0,\,±\frac{\sqrt3}{2}\right),$$
 * $$\left(±\frac{\sqrt3}{6},\,±\frac12,\,±\frac{\sqrt3}{2}\right),$$
 * $$\left(0,\,1,\,±\frac{\sqrt3}{4}\right),$$
 * $$\left(±\frac{\sqrt3}{2},\,-\frac12,\,±\frac{\sqrt3}{4}\right),$$

Related polytopes
A variant of the truncated triangular prism with (A2×A1)+ symmetry occurs as the single cell-type of the tetraswirlic hexadecachoron.