document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=629035>Question 629035</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the perimeter of a rectangle is 100cm, and its diagonal has length x. express the area of the rectangle as a function of x. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #395991 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=395991\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  the perimeter of a rectangle is 100cm, and its diagonal has length x. express the area of the rectangle as a function of x.<BR>\n" );
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document.write( "Perimeter = 2(length + width) = 100 cm<BR>\n" );
document.write( "length + width = 50 cm<BR>\n" );
document.write( "---<BR>\n" );
document.write( "L^2 + W^2 = x^2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "length = sqrt[x^2-width^2]<BR>\n" );
document.write( "width = sqrt[x^2-length^2]<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Area = length*width = sqrt[(x^2-W^2)(x^2-L^2)]<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );