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April 25th, 2019, 12:02 PM   #1
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Circle Proof Help

In the diagram below, quadrilateral ABCD is inscribed in circle O. AB is parallel to DC, and diagonals AC and BD are drawn. Prove that triangle ACD is congruent to BDC.

I have listed the givens and stated that DC is congruent to DC because of the reflexive property, but I’m stuck after this.
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April 25th, 2019, 01:22 PM   #2
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Where's the diagram?
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April 25th, 2019, 01:50 PM   #3
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Sorry I forgot to attach it!
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