Riley Math B Geometry
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Created by:
chonlingliu99 on March 21, 2012
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9 terms
Terms | Definitions |
|---|---|
 line segment | part of a line with two endpoints |
| line | a line segment that has no end points |
| ray | a part of a line with one endpoint and one side goes on forever. |
| parallel lines | lines in the same plane that never intersect |
| perpendicular lines | two lines intersecting at or forming right angles |
| vertical angles | a pair of opposite congruent angles formed by intersecting lines |
| adjacent angles | are a pair of angles with a common vertex and a common side, but no common interior points |
| complementary angles | two angles whose sum is 90 degrees |
| supplementary angles | two angles whose sum is 180 degrees |
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