document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=916206>Question 916206</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If x side of a rectangular field is to have a sea as boundary,  find the dimensions of the largest rectangular field that can be enclosed by using 240 m of fencing material for the other three sides? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #556779 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=556779\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If x side of a rectangular field is to have a sea as boundary, find the dimensions of the largest rectangular field that can be enclosed by using 240 m of fencing material for the other three sides?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let y=width of rectangle<BR>\n" );
document.write( "let x=length (side facing the sea)<BR>\n" );
document.write( "x=240-2y<BR>\n" );
document.write( "Area=y*x=y*(240-2y)=240y-2y^2<BR>\n" );
document.write( "=-2y^2+240y<BR>\n" );
document.write( "complete the square:<BR>\n" );
document.write( "=-2(y^2-120y+3600)+7200<BR>\n" );
document.write( "=-2(y-60)^2+7200<BR>\n" );
document.write( "dimensions:<BR>\n" );
document.write( "y=60 m (width)<BR>\n" );
document.write( "x=240-2y=240-120=120 m(length)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );