Vertices: | 12 (10[3] + 2[5]) |
Faces: | 10 (tri-equiangular kites) |
Edges: | 20 (10 short + 10 long) |
Symmetry: | 5-fold Antiprismatic (D5v) |
Dihedral Angle: | acos(−sqrt(5)/5) | ≈116.565051177 degrees |
Dual Solid: | Pentagonal Antiprism |
(values below based on unit-edge-length Pentagonal Antiprism) |
Short Edge (10): | (sqrt(5)−1)/2 | ≈0.61803398874989484820 |
Long Edge (10): | (1+sqrt(5))/2 | ≈1.6180339887498948482 |
[3]-Vertex Radius (10): | sqrt(3)/2 | ≈0.86602540378443864676 |
[5]-Vertex Radius (2): | sqrt(5+2*sqrt(5))/2 | ≈1.5388417685876267013 |
Edge-scribed Radius: | (1+sqrt(5))/4 | ≈0.80901699437494742410 |
Inscribed Radius: | sqrt(5*(5+2*sqrt(5)))/10 | ≈0.68819096023558676910 |
Volume: | 5*(3+sqrt(5))/12 | ≈2.181694990624912373504 |
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