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If the North Pole angle is pi/2, and the base angles are on the equator, then they are each also pi/2, then this triangle's angles add to 3pi/2.Widen the North Pole and you're even greater.
If the North Pole angle is pi/2, and the base angles are on the equator, then they are each also pi/2, then this triangle's angles add to 3pi/2.
Widen the North Pole and you're even greater.
