1. L is parallel to n 1. Given 2. angle 2 ≅ angle 6 a. corresponding angles 3. angle 4 ≅ angle 2 b. vertical angles <span>4. angle 6 ≅ angle 4 c. alternate interior angles
corresponding angles are angles found in matching corners. vertical angles are angles that share the same vertex alternate interior angles are angles found on the opposite sides of the transversal but inside the two parallel lines</span>