30-11 step prism

The 30-11 step prism is a convex isogonal polychoron, member of the step prism family. It has 30 rhombic disphenoids and 120 phyllic disphenoids of two kinds as cells. It is also the 30-19 step prism.

The ratio between the longest and shortest edges is 1:$$\frac{\sqrt{11+3\sqrt5}}{2}$$ ≈ 1:2.10406.

Vertex coordinates
Coordinates for the vertices of a 30-11 step prism of circumradius $\sqrt{2}$ are given by: where k is an integer from 0 to 29.
 * (sin(πk/15), cos(πk/15), sin(11πk/15), cos(11πk/15)),