document.write( "Question 1006478: two sides of a parallelogram measure 6cm and 7cm. find the lengths of the diagonals if both are integers \n" ); document.write( "
Algebra.Com's Answer #622615 by ikleyn(52787)\"\" \"About 
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\n" ); document.write( "7 and 11.\r
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\n" ); document.write( "\n" ); document.write( "Seven and Eleven.\r
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\n" ); document.write( "\n" ); document.write( "\"7%5E2+%2B+11%5E2\" = 170 = \"2%2A%286%5E2+%2B+7%5E2%29\" = 2*(36 + 49) = 2*85.\r
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\n" ); document.write( "\n" ); document.write( "In a parallelogram the sum of the squares of the diagonals equals the sum of the squares of the four sides.\r
\n" ); document.write( "\n" ); document.write( "See the lesson  The length of diagonals of a parallelogram  in this site.\r
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