system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: A circle is 360°. Is that arbitrary? Could we divide a circle by 100?

Thanks guys, that's a shitton more info than I was hoping for!
gpt
Yes, and there have been other divisions.

Some engineers use grads, which divide a right angle into 100,  and maths often uses radians, of which there are 2Pi in a circle.

EDIT: Many people have rightly pointed out that suggesting radians are arbitrary is wrong. Yes - you're right - it's part of fundamentals of the universe.