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Geometry vocab 5
| Question | Answer |
|---|---|
| line | straight, continues in both directions, does not end |
| point | exact position or location |
| ray | straight, part of a line, one endpoint and continues in one direction exact position or location straight, part of a line, has two endpoints straight, part of a line, one endpoint and continues in one direction |
| line segment | straight, part of a line, has two endpoints |
| angle | formed by two rays or line segments that share an endpoint |
| vertex | endpoint of an angle where the two line segments or rays meet |
| protractor | tool used to measure angles |
| degree | amount measuring an angle |
| right angle | measures 90˚, a square corner |
| acute angle | measures less than a right angle, a “cute” angle |
| obtuse angle | measures more than a right angle, a “big” angle |
| straight angle | a line measuring 180˚ |
| complementary angles | 2 angles in which their sum is 90° |
| supplementary angles | 2 angles in which their sum is 180° |
| intersecting lines | lines that cross at one endpoint forming angles |
| perpendicular lines | intersecting lines that cross to form right angles |
| parallel lines | lines that never cross, do not form angles, always the same distance apart |