document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=888899>Question 888899</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tower of 27.5 m tall makes an angle of 126 degrees with the inclined road on which it is located. Determine the angle subtended by the tower at a point 35 m down the road. Answer and solution please. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537768 by </B><A HREF=/tutors/aboutme.mpl?userid=harpazo><B>harpazo(655)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=harpazo><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=harpazo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=537768\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The tower is 27.5 meters tall.\r<BR>\n" );
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document.write( "The angle 126 degrees is an angle of depression.\r<BR>\n" );
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document.write( "We want to know the angle at a point which is 35 meters away from the base of the tower. The angle we seek is called the angle of elevation. \r<BR>\n" );
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document.write( "We can use a trig function to find the angle.\r<BR>\n" );
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document.write( "We know the height of the tower and the how far the needed angle is located.\r<BR>\n" );
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document.write( "Use tangent.\r<BR>\n" );
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document.write( "Let x be the angle we need.\r<BR>\n" );
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document.write( "tan(x) = 27.5/35\r<BR>\n" );
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document.write( "Since we are looking for an angle, use the inverse tangent function on your calculator.\r<BR>\n" );
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document.write( "x = arctan(27.5/35)\r<BR>\n" );
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document.write( "x is approximately 38.16 degrees.   </SPAN>\n" );
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