SOLUTION: How can I prove that opposite angles of a parallelogram are congruent?

SOLUTION: How can I prove that opposite angles of a parallelogram are congruent?

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Question 375883: How can I prove that opposite angles of a parallelogram are congruent?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use the argument that when parallel lines are cut by a transversal, alternate interior angles are congruent.

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