CCSS IP Math I 5.5.1 Example 4
- Author:
- Walch Education
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.