I can see we're gonna need to talk some geometry in this thread. So I drew you some more pictures.
Here is a triangle (3 sided shape) inside a circle:

Each side can be said to cover 120 degrees of the circle.
Next we have a square (4 sided shape) inside a circle:

Each side can be said to cover 90 degrees of the circle.
Then we have a pentagon (5 sided shape) inside a circle:

Each side can be said to cover 72 degrees of the circle.
With me so far? Ok, because now we have a 360 sided shape inside of a circle. I'm not going to draw that one for you, so use your imaginations. Each side can be said to cover 1 degree of the circle.
Ready to get your mind blown? Now imagine a 400 sided shape inside the circle. What happens now? Well, if you're Babylon, God blows your ass off the face of the earth for being dumb.
I just cried reading the OP. Well done.
So did the moderator who had to move it, he sent me a message to apologize for it. At first I thought this was worse than a lock, but this crowd is starting to warm up.