Answer: 
Step-by-step explanation:


Answer:
∠GAC ≅ ∠HFD by the Property of Congruence.
Step-by-step explanation:
I'm going to be honest the question is a little confusing cause of the beginning, but if you're looking for which angles are actually congruent it's ∠GAC ≅ ∠HFD
Answer:
873.6
Step-by-step explanation:
It would have to be an obtuse triangle