Answer:
Step-by-step explanation:
I encourage my Geometry students to be a bit more thorough than this proof table allows, but we can get it done anyway.
1. ∠2≅∠4 Given
2. m║n If corresponding angles are congruent, then the
lines cut by a transversal are parallel
3. ∠1≅∠3 Alternate interior angles are congruent
