document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167972>Question 167972</A>: <I><SPAN STYLE=\"word-break: break-all;\"> IF the perimeter of a rectangle is 72m what is the largest area </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123807 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=123807\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> IF the perimeter of a rectangle is 72m what is the largest area<BR>\n" );
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document.write( "P = 2(l+w)<BR>\n" );
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document.write( "72 = 2(l+w)<BR>\n" );
document.write( "l+w = 36<BR>\n" );
document.write( "l = 36-w<BR>\n" );
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document.write( "Area = width*length<BR>\n" );
document.write( "A = w(36-w)<BR>\n" );
document.write( "A = 36w - w^2<BR>\n" );
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document.write( "maximum occurs when w = -b/2a = -36/(2*-1) = 18<BR>\n" );
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document.write( "If w = 18 then l = 18<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H </SPAN>\n" );
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