The Math Forum

Ask Dr. Math - Questions and Answers from our Archives
Associated Topics || Dr. Math Home || Search Dr. Math

What is a Vertex?

Date: 12/06/2001 at 21:11:39
From: Sarah
Subject: Vertices

What does vertices mean?

Date: 12/07/2001 at 09:53:55
From: Doctor Sarah
Subject: Re: Vertices

Hi Sarah - thanks for writing to Dr. Math.

The vertex is the point at which two rays of an angle or two edges of 
a polygon meet.

            /  The vertex is the point about which the angle is 
           /   measured.
   vertex /___________

The plural of vertex is vertices.  

              /  \
             /    \
            /      \
           /        \
   vertex /__________\ vertex

A triangle has three vertices.

- Doctor Sarah, The Math Forum   
Associated Topics:
Elementary Definitions
Elementary Geometry
Elementary Triangles and Other Polygons
Elementary Two-Dimensional Geometry
Middle School Definitions
Middle School Geometry
Middle School Triangles and Other Polygons
Middle School Two-Dimensional Geometry

Search the Dr. Math Library:

Find items containing (put spaces between keywords):
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

Submit your own question to Dr. Math

[Privacy Policy] [Terms of Use]

Math Forum Home || Math Library || Quick Reference || Math Forum Search

Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.