33 divided by 3 is 11 plus 10 is 21 so your answer is 21:)
Your question is missing some words and cannot be answered as asked.
However, it seems that the question is simply testing your knowledge of the term "vertical angles." Vertical angles are equal to each other. So if F and D are vertical angles, and one of them is 53°, then the other one is 53° as well.
But again, would need the full question to be sure.
Answer:
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Step-by-step explanation:
bzbaiakxbnnsnakzkz
