| Vertices: | 14 (14[3]) |
| Faces: | 9 (7 squares + 2 regular heptagons) |
| Edges: | 21 (all same length) |
| Symmetry: | 7-fold Prismatic (D7h) |
| Heptagon-Square Angle: | acos(0) | 90 degrees |
| Square-Square Angle: | acos(-root[8*(x^3)+4*(x^2)−4*x−1])
= 900/7 degrees | ≈128.571428571 degrees |
| Dual Solid: | Simplest D7h (1 of 2) |
| (values below based on midscribed radius = 1) |
| Edge Length: | sqrt(root[(x^3)−7*(x^2)+14*x−7]) | ≈0.867767478235116240952 |
| Circumscribed Radius: | sqrt(root[64*(x^3)−304*(x^2)+472*x−239]) | ≈1.0900711440408984768 |
| Midscribed Radius: | 1 |
| Heptagon Center Radius: | sqrt(root[64*(x^3)−112*(x^2)+56*x−7]) | ≈0.43388373911755812048 |
| Square Center Radius: | root[8*(x^3)−4*(x^2)−4*x+1] = cos(π/7) | ≈0.90096886790241912624 |
| Volume: | root[64*(x^3)−1372*x+2401] | ≈2.3745677688113665268 |