document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=194940>Question 194940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the length of a diagonal of a square if its area is 162 square feet.  \r<BR>\n" );
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document.write( "I don't even know how to set this problem up.  Thanks for the help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146232 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=146232\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the length of a diagonal of a square if its area is 162 square feet. <BR>\n" );
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document.write( "Let x = side of the square<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x^2 = 162<BR>\n" );
document.write( "x = sqrt(162)<BR>\n" );
document.write( "x = sqrt(2*9*9)<BR>\n" );
document.write( "x = 9sqrt(2)<BR>\n" );
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document.write( "Let d = diagonal<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(9sqrt(2))^2 + (9sqrt(2))^2 = d^2<BR>\n" );
document.write( "2(9sqrt(2))^2 = d^2<BR>\n" );
document.write( "2(81*2) = d^2<BR>\n" );
document.write( "324 = d^2<BR>\n" );
document.write( "sqrt(324) = d<BR>\n" );
document.write( "18 feet = d<BR>\n" );
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