document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=454733>Question 454733</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the smallest angle, to the nearest degree, in the triangle whose sides are 5\", 8\" and 12\" </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #312189 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=312189\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the smallest angle, to the nearest degree, in the triangle whose sides are a = 5\", b =  8\" and c =  12\"<BR>\n" );
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document.write( "Use the Law of Cosines<BR>\n" );
document.write( "Cos(A) = [b^2+c^2-a^2]/[2bc]<BR>\n" );
document.write( "= [8^2+12^2-5^2]/(2*8*12) <BR>\n" );
document.write( "---<BR>\n" );
document.write( "= 0.953125<BR>\n" );
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document.write( "A = cos^-1(0.953125) = 17.61 degrees<BR>\n" );
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document.write( "Use the same pattern to find angle B.<BR>\n" );
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document.write( "Then angle C = 180-{ang A + ang B]<BR>\n" );
document.write( "==========<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );