document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253033>Question 253033</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The shadow of a building is 280 feet long. At the same time, a 5 foot tall boy's shadow is 2 feet long. How tall is the building? Please show me how to work out this problem. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #185218 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=185218\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We have two similar triangles which means their sides are proportional.<BR>\n" );
document.write( "so we have<BR>\n" );
document.write( "280/2=x/5<BR>\n" );
document.write( "We are relating the shadow's to the heights.<BR>\n" );
document.write( "So solve for x and you have the height of the building.\r<BR>\n" );
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document.write( "To solve for x you could <BR>\n" );
document.write( "a) cross multiply (Some teachers frown on that method -because it isn't as solid pedagogically (as a teaching method) as the other two methods. You can't really see the reason why it works since you are not doing the same thing to both sides) <BR>\n" );
document.write( "b) multiply each side by 5 then by 2<BR>\n" );
document.write( "c) multiply both sides by 10\r<BR>\n" );
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