"Jon Leighton, post: 208106, member: 10216"]I think spherical excess is also worthy of a mention. In general, the internal angles of any large surveyed triangle will sum to more than 180 degrees.[/QUOTE]

I was wondering if there was a good place we could try this in real life, three mountains where the sum of the angles is more than 180°. We could do the math and see what distances would be needed.

Something like the Sierra mountains, or some other place where we have good visibility, probably need at least 50+ miles, but the problem is how to measure the angles if you don't have a theodolite?

I was wondering if there was a good place we could try this in real life, three mountains where the sum of the angles is more than 180°. We could do the math and see what distances would be needed.

Something like the Sierra mountains, or some other place where we have good visibility, probably need at least 50+ miles, but the problem is how to measure the angles if you don't have a theodolite?

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