Transitional bicantitruncatodecachoron

The transitional bicantitruncatodecachoron or tabcated is a convex isogonal polychoron that consists of 10 truncated tetrahedra, 20 ditrigonal trapezoprisms and 20 triangular trapezorhombihedra obtained as the convex hull of two opposite great rhombated pentachora.

Using the ratio method, the lowest possible ratio between the longest and shortest edges is 1:$$\frac{2+\sqrt2}{2}$$ ≈ 1:1.70711.