document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=186616>Question 186616</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An 18-foot ladder is placed 6 feet from the wall. Approximately how high does the ladder reach? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #139897 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=139897\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An 18-foot ladder is placed 6 feet from the wall. Approximately how high does the ladder reach?<BR>\n" );
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document.write( "Draw a diagram of the problem, it'll help you \"see\" the solution easier.<BR>\n" );
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document.write( "Basically, you have a right-triangle so you can apply Pythagorean theorem:<BR>\n" );
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document.write( "Let h = height the ladder reaches<BR>\n" );
document.write( "then<BR>\n" );
document.write( "h^2 + 6^2 = 18^2<BR>\n" );
document.write( "h^2 = 18^2 - 6^2<BR>\n" );
document.write( "h^2 = 324 - 36<BR>\n" );
document.write( "h^2 = 288<BR>\n" );
document.write( "h = sqrt(288)<BR>\n" );
document.write( "h = 16.97 feet\r<BR>\n" );
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