Parallel Line Theorems
Lines a, b, and c have these features: a || b with transversal c.
Congruent Angle Theorems:
Vertical Angles, Corresponding Angles, Alternate Interior Angles, Alternate Exterior Angle
Supplemental Angle Theorems:
Interior Angles on Same Side, Exterior Angles on Same Side
Linear Pair Theorems (form straight line):
Adjacent Angles at a point
Move one slider at a time, make observations Congruent Angles should be equal in size. The Supplemental Angles/Linear Pairs should add to be 180°.