CCGPS AG 1.8.1 Example 4
- Topic:
- Angles, Straight Lines
Prove that vertical angles are congruent given a pair of intersecting lines, and .
- Draw a diagram and label three adjacent angles.
- Start with the Supplement Theorem.
- Use substitution.
- Use the Reflexive Property.
- Use the Subtraction Property.
- Use the definition of congruence.