| Vertices: | 14 (14[3]) |
| Faces: | 9 (7 squares + 2 regular heptagons) |
| Edges: | 21 |
| 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: | Heptagonal Dipyramid |
| (values below based on edge length = 1) |
| Circumscribed Radius: | sqrt(root[448*(x^3)−1232*(x^2)+980*x−239])
= sqrt(1+1/(sin(π/7)^2))/2 | ≈1.2561788398176757092 |
| Midscribed Radius: | sqrt(root[7*(x^3)−14*(x^2)+7*x−1])
= 1/(2*sin(π/7)) | ≈1.1523824354812432526 |
| Heptagon Center Radius: | 1/2 | 0.5 |
| Square Center Radius: | sqrt(root[448*(x^3)−560*(x^2)+84*x−1])
= cot(π/7)/2 | ≈1.0382606982861682836 |
| Volume: | sqrt(root[4096*(x^3)−62720*(x^2)
+115248*x−16807]) = 7*cot(π/7)/4 | ≈3.63391244400158899254 |