document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41495>Question 41495</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help!\r<BR>\n" );
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document.write( "In mountain communities, helicopters drop chemical retardants over areas which approximate the shape of an isosceles triangle having a vertex angle of 38 degrees. The angle is included by two sides, each measuring 20 ft. Find the area covered by the chemical retardant.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #26829 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=26829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Think of the tip of the triangle to be Angle-A; the angle to the right of Angle-A is Angle-B, so b=20 and c=20 while Angle-A is 38 degrees.<BR>\n" );
document.write( "Use Law-Of-Cosines:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2+=+b%5E2+%2B+c%5E2+-+2bc%28cos%28A%29%29 ALIGN=MIDDLE  ALT=\"a%5E2+=+b%5E2+%2B+c%5E2+-+2bc%28cos%28A%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+sqrt%2820%5E2+%2B+20%5E2+-+2%2820%29%2820%29%28cos%2838%28pi%29%2F180%29%29%29 ALIGN=MIDDLE  ALT=\"a+=+sqrt%2820%5E2+%2B+20%5E2+-+2%2820%29%2820%29%28cos%2838%28pi%29%2F180%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+sqrt%28800+-+800%28cos%2838%28pi%29%2F180%29%29%29 ALIGN=MIDDLE  ALT=\"a+=+sqrt%28800+-+800%28cos%2838%28pi%29%2F180%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+sqrt%28800+-+630.4086029%29 ALIGN=MIDDLE  ALT=\"a+=+sqrt%28800+-+630.4086029%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+sqrt%28169.5913971%29 ALIGN=MIDDLE  ALT=\"a+=+sqrt%28169.5913971%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+13.02272618 ALIGN=MIDDLE  ALT=\"a+=+13.02272618\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "*This is done using radian-mode on a calculator. </SPAN>\n" );
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