If a square has sides of 4.................all 4 sides are 4............its circumference is 16.................AND its area is 16........................the area of a square is a side squared...............4 squared is 16..............4 times 4 is 16..........full circumference...........full square is 16............b/c it is like 4 + 4 + 4 + 4 = 16..............if u had a square building..................all sides were 4............if u walked all the way around.............u would walk a distance of 16 whatever measurement in all..........................................

Also the 2 square is the smallest square to fully inscribe the unit circle......................1 and 2...........2 and 1.......................the line at 1/2.........the so called critical line..............and zeros at every negative even number....................every other one.............every 2..............if u cut something in half..........u have two of them..........where just before u had one............one and 2..........2 and one........two lines...................in the 4th d..........not just one............