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Umnica [9.8K]
2 years ago
9

Which of the following is not a reason used in this proof?

Mathematics
1 answer:
Komok [63]2 years ago
8 0

Answer:

Reflexive

Step-by-step explanation:

Because C and D are right angles. That’s def of perpendicular. I’m not sure about the vertical angles but it’s shown in the proof

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