document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036977>Question 1036977</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The  number of circles that can be formed by using 7 non-collinear points are <BR>\n" );
document.write( "(a)       35                    (b)        21<BR>\n" );
document.write( "(c)        28                   (d)          1\r<BR>\n" );
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document.write( "Ans:-35<BR>\n" );
document.write( "How???????? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #651672 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=651672\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The  number of circles that can be formed by using 7 non-collinear points are [sic]<BR>\n" );
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document.write( "Pick any 3 points to determine a circle.<BR>\n" );
document.write( "The 1st is 1 of 7<BR>\n" );
document.write( "then 1 of 6, then 5<BR>\n" );
document.write( "--> 7*6*5 = 210<BR>\n" );
document.write( "But points A, B & C is the same as B, A & C --> 3*2*1 = 6 ways to make the same choices.<BR>\n" );
document.write( "210/6 = 35 </SPAN>\n" );
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