document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=959560>Question 959560</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If an observer is 600 feet from a building and the angle of elevation to the top of a building is 20 degrees, what is the height of the building? Round to the nearest tenth, if needed. \r<BR>\n" );
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document.write( "I'm having a really hard time with this one. I'm guessing the angle from the base of the building to the top is a 90 degree angle but I'm not completely sure since one of the angles is 20 degrees. I'm very confused. Thanks for the help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #586515 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=586515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are correct, this is a right triangle 90, 20, 70<BR>\n" );
document.write( "note that the tangent trig function is defined as opposite side divided by the adjacent side of the formed triangle<BR>\n" );
document.write( "for this problem we know the adjacent side is 600 feet and the angle is 20 degrees, therefore<BR>\n" );
document.write( "tan(20) = opposite side (height of building) / 600 and<BR>\n" );
document.write( "opposite side (height of building) = tan(20)*600 = 218.38214056<BR>\n" );
document.write( "the height of the building is approx 218.4 feet<BR>\n" );
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