Other Solids

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Stella Octangula (Actual)
actual compound
Vertices:  8  (8[3])
Faces:8  (equilateral triangles)
Edges:12  (equal length)
Symmetry:  Full Octahedral  (Oh)
Dihedral Angle:  acos(1/3)    ≈70.528779366 degrees
(values below based on edge length = 1)
[3]-Vertex Radius (8):  sqrt(6)/4    ≈0.612372435695794524549
Volume:sqrt(2)/8    ≈0.17677669529663688110


References:[1]Stella Octangula (Wolfram MathWorld)