| Vertices: | 12 (6[3] + 6[3]) |
| Faces: | 8 (2 equilateral triangles + 6 mirror-symmetric pentagons) |
| Edges: | 18 (6 short + 6 medium + 6 long) |
| Symmetry: | 3-fold Antiprismatic (D3v) |
| (This interpretation uses an apex angle of 540/7 degrees and a truncation of 4/7) |
| Pentagon Apex Angle: | 540/7 degrees | ≈77.142857143 degrees |
| (values below based on long edge length = 1) |
| Short Edge (6): | 3/7 | ≈0.42857142857142857143 |
| Medium Edge (6): | root[343*(x^3)+196*(x^2)−224*x−64] | ≈0.71255977355283832060 |
| Long Edge (6): | 1 |
| Volume: | sqrt(root[1550515608655304256*(x^3)
−7159114742220680400*(x^2)
+807539696082015625]) | ≈2.1430246091313797129 |