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a part of a line consisting of two points and all points in between them


a point at one end of a segment or the starting point of a ray.


a part of a line that starts at an endpoint and extends forever in one direction

opposite rays

two rays that have a common endpoint and form a line


or axiom; a statement that is accepted without proof.


a point that corresponds to one and only one number on the ruler


the absolute value of the difference of the coordinates


distance between A and B

congruent statements

segments that have the same length


a way of creating a figure that is more precise


the point that bisects the segment into two congruent statements


divide evenly

segment bisector

any ray, segment, or line that intersects a segment at its midpoint


a figure formed by two rays, or sides, with a common endpoint called the vertex


a common endpoint

interior of an angle

the set of all points between the sides of the angle

exterior of an angle

the set of all points outside the angle

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