Vertices: | 16 (16[3]) |
Faces: | 10 (8 squares + 2 regular octagrams) |
Edges: | 24 |
Symmetry: | 8-fold Prismatic (D8h) |
Octagram-Square Angle: | acos(0) | 90 degrees |
Square-Square Angle: | acos(sqrt(2)/2) | 45 degrees |
Dual Solid: | Octagrammic Dipyramid |
(values below based on edge length = 1) |
Circumscribed Radius: | sqrt(5−2*sqrt(2))/2 | ≈0.73681287910395029658 |
Midscribed Radius: | sqrt(2*(2−sqrt(2)))/2 | ≈0.54119610014619698440 |
Octagram Center Radius: | 1/2 | 0.5 |
Square Center Radius: | (sqrt(2)−1)/2 | ≈0.20710678118654752440 |
References: | [1] | Jean Paul Albert Badoureau, Mémoire sur les Figures Isocèles, Journal de l'École polytechnique 49 (1881), 47-172. |
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