document.write( "Question 1056702:  please help with this question, thank you in advance. \r
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document.write( "Determine whether ABCD is a parallelogram, and justify your answer:\r
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Algebra.Com's Answer #671769 by Fombitz(32388)    You can put this solution on YOUR website! Yes, opposite angle are equal. Alternating angles sum to 180. \n" ); document.write( " \n" ); document.write( "  |