Definition:Vertex (Geometry)

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Definition

A vertex is a point on the boundary of a geometric figure at which $2$ or more line segments meet.

Vertex of Polygon

IrregularPolygon.png


A corner of a polygon is known as a vertex.

Thus, in the polygon above, the vertices are $A, B, C, D$ and $E$.


Vertex of Polyhedron

The vertices of a polyhedron are the vertices of the polygons which constitute its faces.


Also see

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


Linguistic Note

The plural of vertex is vertices.

The word vertex is Latin for peak, from which the irregular plural form.


Sources