document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194652>Question 1194652</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cars leave the same place at the same time. Each car travels at an average of 60kph. One travels in the direction 60 degrees north-east. The other travels in the direction 40 degrees south-east. How far apart are the two after 30 minutes?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826892 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=826892\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two cars leave the same place at the same time. Each car travels at an average of 60kph. One travels in the direction 60 degrees north-east. The other travels in the direction 40 degrees south-east. How far apart are the two after 30 minutes?<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "2 sides of the triangle are 30 kms.<BR>\n" );
document.write( "The angle between them is 100 degrees<BR>\n" );
document.write( "Use the Cosine Law:<BR>\n" );
document.write( "c^2 = a^2 + b^2 - 2ab*cos(100)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );