document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=368801>Question 368801</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how long is a ramp that is 84 ft high and has a 20 degree rise in elvation </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #262727 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=262727\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If you make a right triangle diagram of the ramp, the height is 84 feet, and you wish to find the hypotenuse.  Looking at the angle of elevation, the sides in consideration are the opposite side and the hypotenuse, suggesting the sine relationship.\r<BR>\n" );
document.write( "\n" );
document.write( "sin x = (opposite) / (hypotenuse)<BR>\n" );
document.write( "sin 20 = 84 / length of ramp\r<BR>\n" );
document.write( "\n" );
document.write( "Now solving we get\r<BR>\n" );
document.write( "\n" );
document.write( "length of ramp = 84 / sin 20 = 84 /.342 = 245.6 feet  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );