document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=804226>Question 804226</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Math Question Simple it is ?<BR>\n" );
document.write( "John of height 1.2m is going away from the lamp post at speed of 1.5m/s.<BR>\n" );
document.write( "If the lamp post is 3.9 m above the ground then the length of his shadow after 3 seconds is ?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #484667 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=484667\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "It would be easy, relatively speaking, had you bothered to mention how far away from the pole he was when he started walking.  Since you didn't, I have to guess that he was right next to the lamppost when he started moving.\r<BR>\n" );
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document.write( "At 1.5 m/sec, in 3 sec, he moves 4.5 meters.  So after 3 seconds, you have two similar triangles, one that has a leg of 1.2 meters (his height) and another leg of <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE x\"> meters (the length of his shadow and ultimately the answer to this problem).  The other triangle has a leg that measures 3.9 meters and the other leg is the 4.5 meters he has moved away PLUS the <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE x\"> meter length of his shadow.\r<BR>\n" );
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document.write( "Corresponding sides of similar triangles are proportional, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{x}{1.2}\ =\ \frac{4.5\,+\,x}{3.9}\">\r<BR>\n" );
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document.write( "Solve for <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large x\">\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "<font face=\"Math1\" size=\"+2\">Egw to Beta kai to Sigma</font><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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