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.​