Definition:Solid Angle/Vertex
< Definition:Solid Angle(Redirected from Definition:Vertex of Solid Angle)
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Definition
The common vertex of the angles containing a solid angle is known as the vertex of that solid angle.
Historical Note
While the term vertex (of a solid angle) is used throughout Euclid's The Elements, the concept is never formally defined there.
Linguistic Note
The plural of vertex is vertices.
The word vertex is Latin for peak, from which the irregular plural form.