# Difference between revisions of "Vertex"

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==Vertex of a polygon or polyhedron== | ==Vertex of a polygon or polyhedron== | ||

See [[polygon]]. | See [[polygon]]. | ||

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+ | Note that the plural form of the word "vertex" is the word "vertices;" the singular of "vertices" is "vertex," not "[[vertice]]." | ||

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[[Category:Definition]] | [[Category:Definition]] |

## Revision as of 11:42, 6 July 2007

There are multiple uses of the word **vertex** in mathematics, including uses in graph theory and multiple uses in geometry.

## Vertex of a parabola

The **vertex** of a parabola is the point which, if a vertical line is placed over it, divides the parabola into two equal mirror images.

## Vertex of an angle

See angle.

## Vertex of a polygon or polyhedron

See polygon.

Note that the plural form of the word "vertex" is the word "vertices;" the singular of "vertices" is "vertex," not "vertice."