Originally Posted by
roseywile
Try folding it in half along the diagonal - if it lines up along both edges to make a triangle, then it's a square.
odi nox
Oh, goodness, why didn't we think of that. What an obvious solution! Thanks, roseywile. We are all just a little bit wiser because of your comment.. Or maybe it is just me who found this one of those head slap moments
Tee-Hee-Hee. Thank you!