Giddy Up Pegasus
Other than the familiar circle, a square is one of the easiest shapes to recognize. After all, it consists of four equal length sides with its corner measuring perfect 90-degree angles. If I were to ask you to point out a nonagon in the night sky, not knowing it is a nine-sided polygon with 140 degree inside angles, you would never find it. However, you would have better luck with the common square.