document.write( "Question 823868: A rectangular carpet has an area of 81 sq. metre and a perimetre of 30 metre. The length of its diagonal is- \n" ); document.write( "
Algebra.Com's Answer #495920 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! ?\r \n" ); document.write( "\n" ); document.write( "x and y are the dimensions of the rectangle. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "More than one way to go from there...\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y=15-x; \n" ); document.write( "x(15-x)=81 \n" ); document.write( "15x-x^2=81 \n" ); document.write( "x^2-15x+81=0 seems not factorable.\r \n" ); document.write( "\n" ); document.write( "x=(15+sqrt(15^2-4*81))/(2), contains imaginary component.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Either I made a fundamental mistake or your situation described is impossible. \n" ); document.write( " |