document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=985685>Question 985685</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the perimeter of a rectangle is fixed at 20 cm. if the length l is increasing at the rate of 1 cm/s, for what value of l does the area of rectangle start to decrease?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #606528 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=606528\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the perimeter of a rectangle is fixed at 20 cm. if the length l is increasing at the rate of 1 cm/s, for what value of l does the area of rectangle start to decrease?<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The max area of a rectangle of fixed perimeter is a square.<BR>\n" );
document.write( "--> starts to decrease at L = 5 cm<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );