Answer:
Step-by-step explanation:
its D
-30
i am not sure just remember getting taught it.
Aye My Guy You Got The Answer Yet Lol
1) Either or ∦ (only two possibilities)
2) Assume (one of two possibilities)
3) (if two parallel lines are cut by a transversal, the corresponding angles are congruent)
4) But is not congruent to (given)
5) So ∦ (only other possibility)