A line segment connecting any two
http://www.chacha.com/question/whatisalinesegm...

A line segment connecting two nonadjacent vertices of a polygon is called a diagonal . Use the link below to verify this and gather more information.
http://wiki.answers.com/Q/A+line+segment+connectin...

A diagonal? If its not a side then the vertices in question are not adjacent.
http://answers.yahoo.com/question/index?qid=201108...

If you are talking about the line segment connecting two vertices of a polygon, the answer is, "it is an edge." Oddman
http://www.blurtit.com/q998102.html
