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Re:U.S. eyes building nuclear power plants on the moon, Mars by lukeschlather on Sunday July 26, 2020 @01:49PM (#23958761)
30/60 degrees are round numbers which are very useful for a lot of applications. Your .02 radian protractor doesn't have a mark on it for either.
Re:U.S. eyes building nuclear power plants on the moon, Mars by thaumasiotes on Sunday July 26, 2020 @02:00PM (#23958856)
Realistically, it probably would; those marks would just not fit into the progression of .02 radian marks. Ever seen a meter stick that also measured inches?

Are you trying to measure an angle, draw a particular angle, or confirm that an angle meets a particular standard?