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3 votes
Answer choices are:

CPCTC
If alternate interior angles are congruent, then lines are parallel
Congruent by SAS
Vertical lines are congruent

Answer choices are: CPCTC If alternate interior angles are congruent, then lines are-example-1
User Kyudos
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1 Answer

4 votes

Answer:ABCD

Explanation:

User Psyrus
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