Dihedral

In geometry, the dihedral is the angle between two planes. See dihedral angle.

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Geometry: Geometry (Greek Γεωμετρια, geo = earth, metria = measure) arose as the field of knowledge dealing with spatial relationships. It was one of the two fields of pre-modern mathematics, the other being the study of numbers. In modern times, geometric c...

Dihedral: In geometry, the dihedral is the angle between two planes. See dihedral angle....

Dihedral angle: In aerospace engineering, the dihedral is the angle between the two wings; see dihedral....