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But sometimes... My anecdote: a close friend's brother was working as a laborer on a pipeline dig. One day work halted for a couple of hours, during which the

But sometimes... My anecdote: a close friend's brother was working as a laborer on a pipeline dig. One day work halted for a couple of hours, during which the construction supervisor and engineer were huddled over some plans. My friend's brother saunters past, looks over, and says "there's your problem," placing a finger on the plan. Then he walks on. He had seen a triangle with angles not adding up to 180 degrees. He was right - that's where the problem was.

whack 6y ago
> He had seen a triangle with angles not adding up to 180 degrees Genuinely curious. How does one even draw a triangle whose angles don't add up to 180 degrees?
- roryokane 6y ago
  My guess is that the triangle was drawn correctly, but its interior angles had labels like “55°”, and those labels didn't add up to 180°. So the triangle could be constructed differently from intended, depending on which two of the angles the constructors used for reference.