1. The_____________ are pairs of angles such that the sum of their angles is equal to 180 degrees. Can be composed of one acute angle and another ob- tuse angle 2. The__________ are two angles whose measures add up to 90 degrees 3. The___________ are angles having the same angle measure in degrees. They can be at any orientation on the plane. 4. The angles that share a side and a vertex is called 5. Two lines on the same plane that never intersect is called________ 6. The___________ are two angles whose measures add up to 180 degrees 7. The____________ are angles that are opposite each other at an intersection.
