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Is line segment AB equals BA?
According to the symmetric property (and common sense) line segmetn AB is congruet to line segment BA since they are the same segment, just with a different name
What is another name for the line segment AB?
Line BA
What is the definition of directed line segments?
we all know, a line segment is a portion of line with two fixed points A and B , but this segment has no specific direction i. e AB and BA are both line segments but if we give direction to this line segment suppose from A to B, then it becomes directed line segment, which is also called as vector AB having direction from A to B.so, a line segment with specific direction is called directed(having direction) line segment.
If ab then ba?
If these are vectors, then ba = - ab
Is a half line ab the same as half line ba?
No. A half line (also called a ray) is a linear object which starts at the first point, and extends to infinity through the second point. So the half-line (or ray) AB starts at point A, and shoots 'through' B and continues past B to infinity. The half-line BA is the other way around: it starts at point B, and then shoots 'through' A and continues past A to infinity. These two half-lines/rays end up extending to infinity in opposite directions, so they are not the same (not congruent).
