Definition:Dihedral (Geometry)

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A dihedral is a configuration in solid geometry formed by two half-planes meeting at a common straight line.

Dihedral Angle

A dihedral angle is the angle contained by two straight lines drawn perpendicular to the common section at the same point, one in each of the two half-planes forming a dihedral.

Also see

  • Results about dihedrals in the context of geometry can be found here.