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Math Vocab
All math vocab for Chapter 5 test!!
| Word | Definition |
|---|---|
| plane | Infinite flat surface |
| parallel | lines in a plane that never meet |
| transversals | a line intersecting two or more lines |
| alternate interior angles | a pair of angles formed by two lines and a transversal |
| corresponding angles | angles formed by two lines and a transversal |
| vertical angles | angles on opposite sides of the intersection or two lines |
| mid point | where two lines intersect |
| congruent segments | equal lengths |
| segment bisector | passes through the midpoint |
| perpendicular | lines, rays, and line segments form right angles. |
| perpendicular bisector | a line, ray, or segment that interescts a segment at its midpoint and is perpendicular to it. |
| ray | a line with an endpoint |
| angle | two rays with a common endpoint |
| vertex | the common endpoint |
| acute angle | an angle that measures less than 90º |
| right angle | an angle that measures exactly 90º |
| obtuse angle | an angle that measure greater than 90º and less than 180º |
| straight angle | an angle that measures exactly 180º (makes a straight line) |