Circumcenter of a triangle

Circucenter is where the perpendicular bisectors of all sides meet.
In an acute triangle it's inside the triangle.
In a right triangle it's on the hypotenuse.
In an obtuse triangle it's outside the triangle opposite to the obtuse triangle.

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IOQM 2024 Paper solutions (Done 1-21, 29)

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Combinatorics DPP - RACE 6 - Q16 pending discussion

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