kbarnett80 kbarnett80
  • 18-07-2018
  • Mathematics
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Summer school probs...

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DeanR
DeanR DeanR
  • 18-07-2018

It's not totally clear but let's say that point is the centroid of an equilateral triangle. From the symmetries angle 1 is 120 degrees since it divides the incircle into three. Angle 2 is half that, 60 degrees so angle 3 is 30 degrees.



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