document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=460891>Question 460891</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given oblique triangle ABC, find the length of c: b = 3 a = 4 angle C = 40°  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322548 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=322548\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given oblique triangle ABC, find the length of c: b = 3 a = 4 angle C = 40° <BR>\n" );
document.write( "...<BR>\n" );
document.write( "Using Law of Cosines:c^2=a^2+b^2-2*a*b*cos C<BR>\n" );
document.write( "c^2=4^2+3^2-2*4*3*cos 40º<BR>\n" );
document.write( "c^2=16+9-24 cos 40<BR>\n" );
document.write( "c^2=6.61<BR>\n" );
document.write( "c=&#8730;6.61=2.57 </SPAN>\n" );
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