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A line segment is the point halfway between the endpoint of a segment.
- -A part of a line
- -Only has 1 endpoint
- -Extends indefinitely in one direction.
Two rays going in opposite directions.
- -Formed by 2 noncollinear rays
- -2 rays = sides
- -Angles that have the same measure.
- -Arcs on the figures indicate which are congruent.
A ray that divides an angle into 2 congruent angles.
2 angles that lie in the same plane, have a common vertex, and a common side but does not share any interior points.
2 angles that are not adjecent and are formend when 2 lines intersect (cross).
A pair of adjacent angles whose nocommon sides are opposite
*A linear pair will always sum up to 180°.
Any 2 angles
2 angles whose measure adds up to 180°.
Lines that intersect to form right angles.