Complementary Angle
2 Angles whose sum is 90 degrees
Supplementary Angles
Two angles whose sum is 180 degrees
Adjacent Angles
Two angles that share a common side and vertex
Linear Pair, *Supplementary
Two adjacent angles that form a line
Vertical Angles
Formed by two intersecting angles
Corresponding Angles
When two lines are crossed by a tranversal, the corresponding angles are in similar places
Alternate Exterior Angles
Two angles on opposite sides of the transversal outside the parallel lines
Alternate Interior Angles
Opposite sides of the transversal inside the parallel lines
Same Side Interior
Same side of the transversal, inside the parallel lines
Same Side Exterior
Same side of the tranversal, outside the parallel lines