Reply to post: everybody knows

Forget trigonometry, 'cos Babylonians did it better 3,700 years ago – by counting in base 60!

Herbert Meyer

everybody knows

The proper way to measure angles is in radians, not degrees. Since any measure is an approximation, "exact" divisors are a fiction. So an irrational measure is appropriate. Besides, any use in mechanics is going to involve a moment, so the pi factor will appear quickly.

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