document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=976917>Question 976917</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the length of side a is 6 centimeters, the length of side b is 4 centimeters, and the length of side c is 7 centimeters, what is the measure of &#8736;B? Round your answer to two decimal places. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #598405 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=598405\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This a triangle I take it.<BR>\n" );
document.write( "Side a = 6cm <BR>\n" );
document.write( "Side b = 4cm<BR>\n" );
document.write( "Side c = 7cm <BR>\n" );
document.write( "Find angle B<BR>\n" );
document.write( "Using Cosine Rule<BR>\n" );
document.write( "Cos B = (a^2 + c^2 - b^2)/ 2ac<BR>\n" );
document.write( "Cos B = (6^2 + 7^2 - 4^2)/ 2 x 6 x 7<BR>\n" );
document.write( "Cos B = (36 + 49 - 16)/ 84<BR>\n" );
document.write( "Cos B = 69/84<BR>\n" );
document.write( "Cos B = 0.8214<BR>\n" );
document.write( "Angle B = 34.77 degrees (2 decimal places)<BR>\n" );
document.write( "Hope this helps :-). </SPAN>\n" );
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