Gyroelongated pentagonal bicupola

The gyroelongated pentagonal bicupola, or gyepibcu, is one of the 92 Johnson solids (J46). It consists of 10+10+10 triangles, 10 squares, and 2 pentagons. It can be constructed by attaching pentagonal cupolas to the bases of the decagonal antiprism.

It is one of the five Johnson solids to be chiral.

Vertex coordinates
A gyroelongated pentagonal bicupola of edge length 1 has the following vertices:
 * $$\left(±\frac12,\,-\sqrt{\frac{5+2\sqrt5}{20}},\,\sqrt{\frac{5-\sqrt5}{10}}+h\right),$$
 * $$\left(±\frac{1+\sqrt5}{4},\,\sqrt{\frac{5-\sqrt5}{40}},\,\sqrt{\frac{5-\sqrt5}{10}}+H\right),$$
 * $$\left(0,\,\sqrt{\frac{5+\sqrt5}{10}},\,\sqrt{\frac{5-\sqrt5}{10}}+H\right),$$
 * $$\left(±\frac12,\,±\frac{\sqrt{5+2\sqrt5}}2,\,H\right),$$
 * $$\left(±\frac{3+\sqrt5}4,\,±\sqrt{\frac{5+\sqrt5}8},\,H\right),$$
 * $$\left(±\frac{1+\sqrt5}2,\,0,\,H\right),$$
 * $$\left(±\frac{\sqrt{5+2\sqrt5}}2,\,±\frac12,\,-H\right),$$
 * $$\left(±\sqrt{\frac{5+\sqrt5}8},\,±\frac{3+\sqrt5}4,\,-H\right),$$
 * $$\left(0,\,±\frac{1+\sqrt5}2,\,-H\right),$$
 * $$\left(-\sqrt{\frac{5+2\sqrt5}{20}},\,±\frac12,\,-\sqrt{\frac{5-\sqrt5}{10}}+h\right),$$
 * $$\left(\sqrt{\frac{5-\sqrt5}{40}},\,±\frac{1+\sqrt5}{4},\,\sqrt{\frac{5-\sqrt5}{10}}+H\right),$$
 * $$\left(\sqrt{\frac{5+\sqrt5}{10}},\,0,\,\sqrt{\frac{5-\sqrt5}{10}}+H\right).$$

where H = $$\sqrt{\frac{-4-2\sqrt5+\sqrt{50+22\sqrt{5}}}8}$$is the distance between the decagonal antiprism's center and the center of one of its bases.