document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1092255>Question 1092255</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You measure the shadow cast by a certain tall building and find that it is 90 feet long. Then you measure the shadow cast by a three-foot post and find it to be 4 inches long. Determine the building's height. \r<BR>\n" );
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document.write( "I wrote it as x/90= 3/4 so 4x=90(3) but my answer was wrong. X= 67.5 (or 68) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #706855 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=706855\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Consider the post and its shadow as a right angled triangle.<BR>\n" );
document.write( "The post is the opposite side, the shadow is the adjacent side.\r<BR>\n" );
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document.write( "Using trigonometric ratios:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28x%29+=+opposite%2Fadjacent ALIGN=MIDDLE  ALT=\"tan%28x%29+=+opposite%2Fadjacent\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Note <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3ft ALIGN=MIDDLE  ALT=\"3ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36+in ALIGN=MIDDLE  ALT=\"36+in\"   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=tan%28x%29+=+36+inches%2F4+inches ALIGN=MIDDLE  ALT=\"tan%28x%29+=+36+inches%2F4+inches\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28x%29+=+9 ALIGN=MIDDLE  ALT=\"tan%28x%29+=+9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+83.66+ ALIGN=MIDDLE  ALT=\"x+=+83.66+\"   DISABLED_style= \"max-width:90%; height:auto;\" >degrees.\r<BR>\n" );
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document.write( "Now consider the building.\r<BR>\n" );
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document.write( "The building is the opposite side, and its shadow is the adjacent side.\r<BR>\n" );
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document.write( " since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90+feet ALIGN=MIDDLE  ALT=\"90+feet\"   DISABLED_style= \"max-width:90%; height:auto;\" > is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1080in ALIGN=MIDDLE  ALT=\"1080in\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we have\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%2883.66%29+=+opposite%2F1080+in ALIGN=MIDDLE  ALT=\"tan%2883.66%29+=+opposite%2F1080+in\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=opposite+=+1080+in+%2A+tan%2883.66%29 ALIGN=MIDDLE  ALT=\"opposite+=+1080+in+%2A+tan%2883.66%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=opposite+=+1080in%2A9.00027 ALIGN=MIDDLE  ALT=\"opposite+=+1080in%2A9.00027\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=opposite=+9720.2916in ALIGN=MIDDLE  ALT=\"opposite=+9720.2916in\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=opposite=+810.0243ft ALIGN=MIDDLE  ALT=\"opposite=+810.0243ft\"   DISABLED_style= \"max-width:90%; height:auto;\" >->This is the height of the building.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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