Geometry Pre-AP Ch. 1 Vocab.
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Created by:
AllisonESmith on September 1, 2011
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17 terms
Terms | Definitions |
|---|---|
 segment | a part of a line consisting of two points and all points in between them |
| endpoint | a point at one end of a segment or the starting point of a ray. |
| 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 |
| postulate | or axiom; a statement that is accepted without proof. |
| coordinate | a point that corresponds to one and only one number on the ruler |
| distance | the absolute value of the difference of the coordinates |
| length | distance between A and B |
| congruent statements | segments that have the same length |
| construction | a way of creating a figure that is more precise |
| midpoint | the point that bisects the segment into two congruent statements |
| bisect | divide evenly |
| segment bisector | any ray, segment, or line that intersects a segment at its midpoint |
| angle | a figure formed by two rays, or sides, with a common endpoint called the vertex |
| 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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