Learning Path for Vertical Angles 3

The following is a list of all proofs that are used to prove either Vertical Angles 3 or its ancestor proofs.

Transitive Property of Equality Variation 2
Angle Symmetry Example 2
Collinear Points Theorem
Subtract Both Sides
Add Term to Both Sides 6
Subtract Both Sides 2
Add Term to Both Sides 7
Transitive Property of Equality Variation 1
Vertical Angles 3
Start Path