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
To solve this find the common number that can be divided by both and use that number.
In this case, 4 is divisible by both 4 and 12, and thus the final expression would be
4(d + 3e).
The best answer for the question of what illustrates the commutative property of addition is letter c which is 22 + 11 = 11 + 22. Because the commutative property of addition states that a + b = b + a, thus the chosen answer is the best answer.