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Mathematics 13 Online
OpenStudy (dehydrated):

AM I RIGHT ON THIS?

OpenStudy (dehydrated):

OpenStudy (seratul):

Yep.

Directrix (directrix):

I do not think so. Angles BCD and CDA are supplementary only if you know that the quadrilateral is a parallelogram. You don't know that. It is what you are attempting to prove. |dw:1476580201347:dw|

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