3. Parallel llines cut by a transversal make corresponding angles equal
6. Parallel lines cut by a transversal make interior angles equal
7. Transitive Property of Congruence
8. EB congruent to AB Sides opposite equal angles in a triangle are ccngruent
9. EB = AB
10. AD = AB
I'm not toally sure about Step 9, but....I did my best....!!!