document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=429099>Question 429099</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangle plus its width is 20cm, the area is 36 square cm. What are the length and the width of the triangle. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #298143 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=298143\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the length of a rectangle plus its width is 20cm, then its' length is 20cm minus its width.  Also, we know that the rectangle's total area is 36 sq.cm.. Thus we have:\r<BR>\n" );
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document.write( "X(20-X) = 36<BR>\n" );
document.write( "20X-X^2 = 36<BR>\n" );
document.write( "20X-36 =X^2<BR>\n" );
document.write( "0 = X^2-20X+36<BR>\n" );
document.write( "0 = (X-18)(X-2)\r<BR>\n" );
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document.write( "Thus the dimensions of our rectangle are 18cm X 2cm. </SPAN>\n" );
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