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| the undefined terms of geometry |
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| points where 2 figures meet |
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| 2 points on a line and all the points in between them |
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| a line segment and all the points on that line extending from one end of the segment |
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| 2 rays collinear with the same endpoint that extend in opposite directions |
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| distance between two endpoints |
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| geometric statement that is accepted without proof |
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| geometric statements that require proof |
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| point that divides the segment into 2 congruent segments |
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| line, ray, or segment that intersects the segment at its midpoint |
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| figure formed by 2 rays that have the same endpoint |
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| angle between 0 and 90 degrees |
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| angle between 90 and 180 degrees |
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| angle with a measure of 180 degrees |
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| angles with the same measure |
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| 2 angles in a plane that have a common vertex and a common side but no common interior points |
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| line, ray, or segment that divides angle into 2 congruent, adjacent angles |
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| drawing a geometric figure using a compass and straight edge |
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| greek man known as the father of geometry |
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