document.write( "Question 1150409: The perimeter of parallelogram ABCD is 80 cm. AD is 7 cm more than twice AB. Find the lengths of all four sides of ABCD. \n" ); document.write( "
Algebra.Com's Answer #771963 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "If you make AB = x
\n" ); document.write( "then AD = 2x + 7
\n" ); document.write( "Therefore two sides AB and DC = x
\n" ); document.write( "and sides AD and BC = 2x + 7
\n" ); document.write( "AB + DC + AD + BC
\n" ); document.write( "x + x + 2x + 7 + 2x + 7 = 80
\n" ); document.write( "6x + 14 = 80
\n" ); document.write( "6x = 80 - 14
\n" ); document.write( "6x = 66
\n" ); document.write( "x = 11.
\n" ); document.write( "Sides AB and DC = 11 cm
\n" ); document.write( "Sides AD and BC = 29 cm
\n" ); document.write( "Hope this helps :-)
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