document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=12298>Question 12298</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if a plane contains 20 points no three of which are collinear how many different triangles can be formed using these points </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #6237 by </B><A HREF=/tutors/aboutme.mpl?userid=askmemath><B>askmemath(368)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=askmemath><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=6237\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Do you know Permutations and Combinations?\r<BR>\n" );
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document.write( "YOu require 3 points to make a triangle.<BR>\n" );
document.write( "SInce none of the points are collinear,from 20 points we can get 3 points in 20C3 ways. </SPAN>\n" );
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