document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321510>Question 321510</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the maximum area of a rectangle given that its perimeter is 32 feet?<BR>\n" );
document.write( "Choices... 32ft, 128ft, 256ft, or 64ft.\r<BR>\n" );
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document.write( "I tried 12 by 4 but i did not work. And I tried 15 by 2. I dont know any other ways to solve for this question.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230254 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230254\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2L + 2W = 32 ___ L + W = 16 ___ L = 16 - W\r<BR>\n" );
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document.write( "A = L * W = (16 - W)W = 16W - W^2 ___ this is a downward opening parabola with the maximum for A at the vertex<BR>\n" );
document.write( "___ the vertex is on the axis of symmetry\r<BR>\n" );
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document.write( "W = -b / 2a = -16 / [2*(-1)] = 8\r<BR>\n" );
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document.write( "A = (16 - 8)8 = 64\r<BR>\n" );
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document.write( "the rectangle with the maximum area is a square </SPAN>\n" );
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