document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773685>Question 773685</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the points A(1,0,1), B(-2,4,3), and C(1,2,-1), find:\r<BR>\n" );
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document.write( "The area of the triangle ABC </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471754 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=471754\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For the points A(1,0,1), B(-2,4,3), and C(1,2,-1), find:\r<BR>\n" );
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document.write( "The area of the triangle ABC<BR>\n" );
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document.write( "Find the side lengths.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AB+=+sqrt%28diffz%5E2+%2B+diffy%5E2+%2B+diffx%5E2%29+=+sqrt%282%5E2+%2B+4%5E2+%2B+3%5E2%29+=+sqrt%2829%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find AC and BC.<BR>\n" );
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document.write( "Then either use Heron's Law, or<BR>\n" );
document.write( "Find an angle using the Cosine Law.<BR>\n" );
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