document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1109829>Question 1109829</A>: <I><SPAN STYLE=\"word-break: break-all;\"> From a point on level ground, the angles of elevation of the top and the bottom of an antenna standing on top of a building are 32.5&#730; and 26.3&#730;, respectively. If the building is 136 ft. high, how tall is the antenna? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #724786 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=724786\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Observation ground point, bottom of antenna, top of antenna, form a triangle.<BR>\n" );
document.write( "6.2 degrees at observation point, 63.8 degree at top of antenna, 110 degree at bottom of antenna.\r<BR>\n" );
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document.write( "Two other, RIGHT triangles sharing distance from observation to bottom of the BUILDING.  Let antenna length be h.\r<BR>\n" );
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document.write( "Smaller right triangle, let r be distance from observe point to bottom of antenna.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2826.3%29=136%2Fr ALIGN=MIDDLE  ALT=\"sin%2826.3%29=136%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=136%2Fsin%2826.3%29 ALIGN=MIDDLE  ALT=\"r=136%2Fsin%2826.3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Let R be distance from observe to TOP of antenna.  You would now know r.<BR>\n" );
document.write( "Law Of Sines again, using the non-right triangle,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28110%29%2FR=sin%2863.8%29%2Fr ALIGN=MIDDLE  ALT=\"sin%28110%29%2FR=sin%2863.8%29%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%2Fsin%28110%29=r%2Fsin%2863.8%29 ALIGN=MIDDLE  ALT=\"R%2Fsin%28110%29=r%2Fsin%2863.8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=r%28sin%28110%29%2Fsin%2863.8%29%29 ALIGN=MIDDLE  ALT=\"R=r%28sin%28110%29%2Fsin%2863.8%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You would then have computed r and R.<BR>\n" );
document.write( "The angle between them is or was found when analyzing the drawn diagram, 6.2 degrees.<BR>\n" );
document.write( "Use Law Of Cosines.\r<BR>\n" );
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document.write( "If y is how tall the antenna,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2%2BR%5E2-2rR%2Acos%286.2%29=y%5E2 ALIGN=MIDDLE  ALT=\"r%5E2%2BR%5E2-2rR%2Acos%286.2%29=y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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