[longshadow]

OK so you say a square can be perfectly round and still be a square – and say a circle equal to a square. I guess all shapes musts be the same. You are saying shapes cannot be defined.

I am saying that geometric figures are not only definable, but that they are rigorously defined. In fact I'll do so right now:

square:= a plane geometric figure composed of four equal length sides and of equal interior angles.

circle:= a plane geometric figure composed of the set of points equidistant from a given point.

I am saying that it is possible to specify a square that is both square and perfectly circular at the same time, using the above definitions. In fact, it is "trivially"* easy to do so.

*"trivial" is clue....

[Heartlander]

Pi “r” round - No?