document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1155542>Question 1155542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A helicopter is stationed at an airport H on a bearing 060 degrees and 800km from another airport P. A third airport is J is on bearing of 140 degrees and 1,200km from H. Determine: i) the distance of P from J ii) The bearing of P from J  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #778259 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=778259\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A helicopter is stationed at an airport H on a bearing 060 degrees and 800km from another airport P. A third airport is J is on bearing of 140 degrees and 1,200km from H.<BR>\n" );
document.write( "Determine: i) the distance of P from J ii) The bearing of P from J<BR>\n" );
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document.write( "It's a triangle with 2 sides and the included angle given.<BR>\n" );
document.write( "Angle H, or PHJ = 100 degs<BR>\n" );
document.write( "Side h = PJ<BR>\n" );
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document.write( "Use the Cosine Law to find side PJ<BR>\n" );
document.write( "h^2 = 800^2 + 1200^2 - 2*800*1200*cos(100)<BR>\n" );
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document.write( "ii) The bearing of P from J<BR>\n" );
document.write( "Use the Law of Sines to find angle JPH<BR>\n" );
document.write( "Add 60 degrees to angle JPH for the bearing.\r<BR>\n" );
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