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Mathematics 19 Online
OpenStudy (anonymous):

ABCD is a parallelogram. If m

OpenStudy (anonymous):

|dw:1330557139980:dw|

OpenStudy (phi):

|dw:1330546587999:dw| parallelogram means sides are parallel. you can think of CD as a transversal. that means the marked angles are equal. (you know about transversals) of course BCD plus the marked angle add up to a straight line (180 degrees) Can you figure it out?

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