[Tempest1981]

Is that why we have 90 degrees in a right angle, instead of 100?

90: 2, 3, 5, 6, 9, 10, 15, 18, 30, and 45

100: 2, 4, 5, 10, 20, 25, and 50

If we used grads, it would be a nice even 100,000 meters per grad, vs 111,111.111 per degree.