document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=171836>Question 171836</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you explain why a three-legged stool is often more steady than a four-legged stool? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #126957 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=126957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well, actually, a three-legged stool will always be more stable (on a perfectly flat floor) than a four-legged stool, why, because it takes only three point to define a plane, and if that plane happens to be a flat floor and the three points happen to be the ends of the legs of a three-legged stool, the the stool will be stable.  With four points (a four-legged stool), one of them could be outside of the plane and thus, contribute to instability of the stool. </SPAN>\n" );
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