document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=112137>Question 112137</A>: <I><SPAN STYLE=\"word-break: break-all;\"> two ships leave a harbor traveling on courses that have an angle of 120 degrees between them. if they each travel 515 miles how far apart are they (to the nearest mile)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #81824 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=81824\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If they both travel 515 miles we can construc an isocoles triangle with apex of 120 deg and 2 base angles of (180-120)/2=30 deg each.<BR>\n" );
document.write( "The easiest way find the base is to construct a line from the apex perpendicular to the base. It bisects the apex and forms two right triangles.<BR>\n" );
document.write( "hyp=515 <BR>\n" );
document.write( "cos(30)=adj/515<BR>\n" );
document.write( "adj=515cos(30)=446<BR>\n" );
document.write( "446*2=892 mi. To find the full base we multiply times 2.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );