A segment is a part or a piece of something larger. A line segment is a part of a line that connects two points, called endpoints. Like a line, a line segment is a onedimensional
http://www.ehow.com/info_8426869_linesegment.html

A line segment is a part of a line that is bounded by two end points, and contains every point on the line between its end points.
http://wiki.answers.com/Q/What_is_the_definition_o...

To make a vertical line segment on the ti83 graphing calculator, you would type in
http://www.chacha.com/question/whatisavertical...

I think the answer to both questions is 0. Whatever the distribution of the size of any of the angles is, it is a continuous distribution. The probability that a continuous distribution
http://www.quora.com/Whatistheprobabilitythat...
