| Vertices: | 8 (7[3] + 1[7]) |
| Faces: | 8 (7 isosceles triangles + 1 regular heptagon) |
| Edges: | 14 (7 short + 7 long) |
| Symmetry: | 7-fold Pyramidal (C7v) |
| Dual Solid: | Heptagonal Pyramid (itself) |
| (values below based on edge-scribed radius = 1) |
| Short Edge (7): | sqrt(root[(x^3)−8*(x^2)−576*x+512]) | ≈0.93772603323035618000 |
| Long Edge (7): | sqrt(root[(x^3)−32*(x^2)+192*x+512]) | ≈4.7345012288982147881 |
| Edge-scribed Radius: | 1 |
| Volume: | root[27*(x^3)−1008*(x^2)+9408*x−25088] | ≈4.9097770568078728097 |