



So a
real line goes on forever in both directions.






That's
pretty big. 





Most of
the time, we don't need the whole line. 


We just
need a little piece of it ... 











We call
this piece of the line a LINE SEGMENT. 


Most of
the time we also want to talk about 


the ends
of the line segment. 





Instead
of saying stuff like: 


"The
end of the line segment on the left" 


we put
points with labels on the ends of the segments. 











Then we
can just say "Point A." 





copyright 2005 Bruce Kirkpatrick 
