document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=623657>Question 623657</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Why doesnt a three legged table wobble?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #392201 by </B><A HREF=/tutors/aboutme.mpl?userid=math-vortex><B>math-vortex(648)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math-vortex><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=math-vortex><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=392201\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi, there--<BR>\n" );
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document.write( "Mathematically, three points determine a plane. In other words, for any three points chosen on an uneven floor, there is an even floor with some slight tilt that passes through these points. A stool with legs touching the floor at these three points doesn't know that it is not sitting on this even floor. <BR>\n" );
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document.write( "When a four-legged stool, on the other hand, is to be set down so that its legs hit the floor at a certain four points, these four points are not necessarily contained in a single plane. Assuming the stool is designed for an even floor, it may be able to touch with only three legs at once, wobbling between different choices of three legs.<BR>\n" );
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document.write( "citation: David Greenspan, Lexington, KY USA<BR>\n" );
document.write( "http://www.guardian.co.uk/notesandqueries/query/0,5753,-18846,00.html<BR>\n" );
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