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1. Transversal- A line that cuts across two or more other lines
2. Angle-An angle is the set of points when two rays both start at the same point.
3. parallel-Two lines are parallel if they never intersect
4. perpendicular-lines that intersect to form a right angle
5. Adjacent angle- two things are next to each other. In the angles.
6. Alternate exterior angle-When a pair of parallel lines is intersected by a transversal
7. Alternate interior angle-When a pair of parallel lines is intersected by a transversal
8. vertical angle-right angles to the horizon
9. acute angle-angle measuring less than 90 degrees
10. obtuse angle-angles between 90 and 180 degrees
11. right angle-a angle measuring 90 degrees
KEY
1. parallel lines- AB AND CD
2. transversal line- E
3. adjacent angle-1&4 1&2 3&2 3&4 5&8 5&6 7&6 7&8
4. alternate exterior angle- 1&7 6&2
5. alternate interior angle- 4&8 5&3
6. vertical angle- 1&3 2&4 5&7 8&6
7. acute angle- 2 4 6 8
8. obtuse angle- 1 3 5 7
