document.write( "Question 345444: why wont a 3 legged chair wobble but a 4 legged chair will? \n" ); document.write( "
Algebra.Com's Answer #247113 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Three points define a plane.
\n" ); document.write( "Once those three points are established adding another point, that isn't in the plane, would cause an unbalance, leading to the wobble.
\n" ); document.write( "If the 4th point is in the plane, then it wouldn't wobble either.
\n" ); document.write( "
\n" ); document.write( "
\n" );