Posted by LISA on Thursday, September 22, 2011 at 7:32pm.
is it possible that the points a, b,c are collinear but AB + BC not equal AC

geometry  Steve, Friday, September 23, 2011 at 12:23pm
only if b is not between a and c. The way the points are listed, one expects a, then b, then c, but maybe it's acb and the points a,b,c are still collinear.
I think the desired answer is No.
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