Not all parts are equal
Look at the center of the circle, and then at the seemingly equal parts. Since the center is off base, it makes the sixteen parts unequal, which misses the whole point of this circle. That’s what we use a protractor for – you know, this small measuring instruments we all had as kids, and we’d use in geometry class.
The worst part is that it looks like this circle was made on the computer. If it was drawn by hand, we’d be more understanding – we can see how someone might be slightly off base. But a computer, a machine, is supposed to be able to make flawless geometry shapes. Right? That’s what we thought until we took one look at this circle.