Unit 7 Vocab

4. Angles that have a common side and a common vertex
7. Two angles whose sum is 90 degrees
9. Angles between 2 lines and on opposite sides of a transversal
11. Lines in the same plane that never intersect
12. Angles that have the same measure
14. The measure of an exterior angle of a triangle is equal to the sum of the measures of the two nonadjacent interior angles
15. The interior angles of a triangle add up to 180 degrees

1. Two angles whose sum is 180 degrees
2. A line that intersects two parallel lines
3. Triangles in which corresponding angles are equal in measure and corresponding sides are in proportion
5. Angles in the same place on different lines
6. A pair of opposite congruent angles formed by intersecting lines
8. The common endpoint of an angle
9. Angles that lie outside a pair of lines and on opposite sides of a transversal
10. An angle that measures 90 degrees
13. An equation stating that two ratios are equal