Dimensions
Length of octahedron edge: a. |
The radius of circumsphere:
R = a / 2 * sqrt( 2 );
The radius of edgesphere (tangent to edges):
Re = a / 2;
The radius of the insphere:
Ri= a / 6 * sqrt( 6 );
The angle between two faces: ~ 109,471°
Face_Angle = degrees(acos(-1/3));
The angle between two edges:
Edge_Angle = 90°
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Inside of a regular octahedron:
3 squares.
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Folding of a regular octahedron
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