document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=168667>Question 168667</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The perimeter and the diagonal of a rectangle are 18m and 5 m respectively. find its area ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124317 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=124317\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The perimeter and the diagonal of a rectangle are 18 and 5 m respectively. find its area ?<BR>\n" );
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document.write( "perimeter = 18m<BR>\n" );
document.write( "diagonal = 5m ?<BR>\n" );
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document.write( "Perimeter = 2(L+W) = 18m<BR>\n" );
document.write( "L+W = 9m<BR>\n" );
document.write( "L = 9m-W<BR>\n" );
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document.write( "Using Pytagoras:<BR>\n" );
document.write( "w^2 + (9m-W)^2 = (5m)^2<BR>\n" );
document.write( "W^2 + 81m^2 - 18mW + w^2 = 25m^2<BR>\n" );
document.write( "56m^2 -18wm +2w^2 = 0 <BR>\n" );
document.write( "28m^2 - 9wm + 2w^2 = 0<BR>\n" );
document.write( "m = [9w +- sqrt(81w^2 -4*28*2w^2)]/56\r<BR>\n" );
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document.write( "m = [9w +- sqrt(-143w^2)]/56<BR>\n" );
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document.write( "Comment: Since you have a negative radicand you have no Real Number solution.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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