document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389116>Question 389116</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the dimensions of a rectangle with an area of sixty square feet and a diagonal of thirteen feet. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #275644 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=275644\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the length=a and the width=b<BR>\n" );
document.write( "ab=60<BR>\n" );
document.write( "a=60/b<BR>\n" );
document.write( "a^2+b^2=13^2<BR>\n" );
document.write( "(60/b)^2+b^2=169 Substitute 60/b for a<BR>\n" );
document.write( "3600/b^2 + b^2 = 169<BR>\n" );
document.write( "3600+b^4=169b^2 multiply each side by b^2\r<BR>\n" );
document.write( "\n" );
document.write( "b^4-169b^2+3600=0<BR>\n" );
document.write( "(b^2-144)(b^2-25)=0<BR>\n" );
document.write( "(b+12)(b-12)(b+5)(b-5)=0<BR>\n" );
document.write( "b=5', a=12'<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );