Vertices: | 18 (16[3] + 2[8]) |
Faces: | 16 (tri-equiangular darts) |
Edges: | 32 (16 short + 16 long) |
Symmetry: | 8-fold Antiprismatic (D8v) |
Dihedral Angle: | acos((5+6*sqrt(2)+2*sqrt(130−79*sqrt(2)))/47) | ≈62.040763987 degrees |
Dual Solid: | Octagrammic Crossed Antiprism |
(values below based on unit-edge-length Octagrammic Crossed Antiprism) |
Short Edge (16): | sqrt(2*(8−5*sqrt(2)+sqrt(2*(58−41*sqrt(2)))))/2 | ≈0.74653912492614494202 |
Long Edge (16): | sqrt(1+sqrt(2)+sqrt(2+sqrt(2))) | ≈2.0644545592954252673 |
[8]-Vertex Radius (2): | sqrt(2*(30−20*sqrt(2) −sqrt(2*(850−601*sqrt(2)))))/4 | ≈0.41475491559346828094 |
[3]-Vertex Radius (16): | sqrt(6*(2+sqrt(2*(2−sqrt(2)))))/4 | ≈1.0751265391151163181 |
Edge-scribed Radius: | sqrt(2*(4−2*sqrt(2)−sqrt(2*(10−7*sqrt(2)))))/4 | ≈0.30067244346752264027 |
Inscribed Radius: | sqrt(94*(146−88*sqrt(2) −5*sqrt(2*(706−497*sqrt(2)))))/188 | ≈0.15494942848575199700 |