document.write( "Question 365445: The number of parallelograms that can be formed from a set of FOUR parallel straight line intersecting a set of THREE parallel straight lines = ?\r
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Algebra.Com's Answer #260505 by sudhanshu_kmr(1152)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "ans d 18
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