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Mathematics 18 Online
OpenStudy (anonymous):

Can someone help me with proofs for geometry?

OpenStudy (anonymous):

me :)

OpenStudy (anonymous):

Okay! I'll type out the proof!

OpenStudy (anonymous):

In the diagram below , quadrilateral ABCD is inscribed in circle O, Line AB is parallel to line DC and diagonals, AC and BD are drawn. Prove that triangle ACD is congruent to triangle BDC|dw:1340157489880:dw|

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