It would be 5%. I know the answer is right I just don’t know how to explain it. Sry. But I hope this helps.
Answer:
300
Step-by-step explanation:
Is that the full question, because it doesn't make sense to me :/
Transitive property is your answer
if ∠A ≅ ∠C, and ∠C ≅ ∠B then, ∠A ≅ ∠B
hope this helps