Vertex

(Redirected from Corner)
B is an ear because the line between C and D is completely inside the shape. C is a mouth because the line between A and B is completely outside the shape.

A vertex is a corner. More than one vertex are called vertices. A vertex is a point where two or more lines, curves, rays, or sides meet, and is often represented by letters such as [math]\displaystyle{ P }[/math], [math]\displaystyle{ Q }[/math], [math]\displaystyle{ R }[/math] and [math]\displaystyle{ S }[/math].[1]

For example, the vertex of an angle is the point where the two edges of the angle intersect, and a vertex of a cube is simply one of its corners—of which there are eight.[2]

The concept of vertex applies to both two-dimensional and three-dimensional geometrical objects. For example, a tetrahedron has four vertices, and a pentagon has five vertices.[3]

Related pages

References

  1. "Compendium of Mathematical Symbols". Math Vault. 2020-03-01. Retrieved 2020-08-16.
  2. "What Are Vertices in Math?". Sciencing. Retrieved 2020-08-16.
  3. "Vertices, Edges and Faces". www.mathsisfun.com. Retrieved 2020-08-16.