document.write( "Question 904805: A rectangle is twice as long as it is wide and has the same perimeter as a square whose area is 81 square feet larger than that of the rectangle. What are the dimensions of both the rectangle and the square? \n" ); document.write( "
Algebra.Com's Answer #548899 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
L=2w, and let p be the perimeter of both the rectangle and the square.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "s = side length of the square.
\n" ); document.write( "\"s%5E2=81\"
\n" ); document.write( "\"highlight%28s=9%29\", as a result.
\n" ); document.write( "\"p=4%2A9=36\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"2w%2B2L=36\"
\n" ); document.write( "\"2w%2B2%282w%29=36\"
\n" ); document.write( "\"6w=36\"
\n" ); document.write( "\"highlight%28w=6%29\".
\n" ); document.write( "
\n" );