document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1101467>Question 1101467</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the largest angle in a triangle with sides 6.0 cm, 7.0 cm, and 8.0 cm. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #716040 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=716040\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Find the largest angle in a triangle with sides 6.0 cm, 7.0 cm, and 8.0 cm. <BR>\n" );
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document.write( "The angle opposite the largest side is the largest angle.<BR>\n" );
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document.write( "a^2 = b^2 + c^2 - 2bc*Cos(A)<BR>\n" );
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document.write( "Cos(A) = [b^2+c^2-a^2]/(2bc)<BR>\n" );
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document.write( "Cos(A) = [6^2+7^2-8^2]/(2*6*7) = -0.9167<BR>\n" );
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document.write( "A = arccos(-0.9167) = 156.44 degrees<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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