No what the heck is a quadrilateral? Anything with four sides! Squares, rectangles, diamonds, trapezoids, rhombuses (rhombi?), and any other four-sided shapes are all game. Why limit yourself to squares when you can have the entire family of shapes?
(If you noticed, I'm trying to slowly push this back to a Monday start, so expect this to go for two weeks and a day or two...)
"La divina podestate, la somma sapienza e 'l primo amore."
Editor - General, Literature, Religion