Why are circles always 360 degrees?

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Please Answer quickly i am really confused Most websites say that people thought a circle is 360 degrees because there are 360 dayes in a year but there are not they also say that the base number is 60 or 10 but i dont know what base number means and please tell me how this came to be and when ancient people found this out

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There is no "found out". It is merely a definition. We could also define a circle to have 180 degrees, just like how in mathematics we often use 2pi radian instead of 360 degrees. It's just a useful definition because 360 has so many factors: 2, 3, 4, 5, 6, 8, 9, 10... But the main reason we use 360 degrees is tradition. The ancient Greeks used 360 degrees, the Babylonians used 360 degrees, it just stuck.