document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=128908>Question 128908</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a ladder that is 13m long is placed so that its foot it 3m from the base of a vertical wasll . how far does the laddr reach up the wall </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #94273 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=94273\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pythagoras says <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%5E2=a%5E2%2Bb%5E2 ALIGN=MIDDLE  ALT=\"c%5E2=a%5E2%2Bb%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  The ladder itself is c, and the distance from the foot of the ladder to the base of the vertical wall is either a or b, as you please, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13%5E2=3%5E2%2Bb%5E2 ALIGN=MIDDLE  ALT=\"13%5E2=3%5E2%2Bb%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2+=+169+-+9 ALIGN=MIDDLE  ALT=\"b%5E2+=+169+-+9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2=+160 ALIGN=MIDDLE  ALT=\"b%5E2=+160\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=+sqrt%28160%29 ALIGN=MIDDLE  ALT=\"b=+sqrt%28160%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=sqrt%2816%2A10%29 ALIGN=MIDDLE  ALT=\"b=sqrt%2816%2A10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=4%2Asqrt%2810%29 ALIGN=MIDDLE  ALT=\"b=4%2Asqrt%2810%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the ladder reaches <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Asqrt%2810%29 ALIGN=MIDDLE  ALT=\"4%2Asqrt%2810%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > meters up the wall.  Roughly 12.6 meters.\r<BR>\n" );
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document.write( "By the way, that is a HUGE ladder, over 42 and a half feet long. It would reach to the 4th floor of most multi-story buildings. </SPAN>\n" );
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