geometry - Triangle with all reflex angles? - Mathematics Stack Exchange

I was thinking about how a triangle could have all reflex angles. it would look like a regular triangle but the inside would be the outside and the outside would be the inside. Such a triangle would

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algorithm - How to calculate an angle from three points? - Stack Overflow

Educational - Understanding angles is crucial to understanding geometry as a whole. This handy poster shows 9 basic angles in geometry (acute, right,

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Answered: The Eiffel Tower is located in Paris.…