document.write( "Question 430390: A quadrilateral MUST be a parallelogram if it has\r
\n" ); document.write( "\n" ); document.write( "A) one pair of adjacent sides equal.
\n" ); document.write( "B)one pair of parallel sides.
\n" ); document.write( "C)a diagonal as axis of symmetry .
\n" ); document.write( "D)two adjacent angles equal .
\n" ); document.write( "E) two pairs of parallel sides.
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Algebra.Com's Answer #298902 by richard1234(7193)\"\" \"About 
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E \n" ); document.write( "
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