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Qua-2016-528, Simson line

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작성자: komath

라벨: collinearity, general, problem, quadrilaterals

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<Tri-2025-2270>, general, tangent <Russia Regional Olympiad 2003>
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<Cir-2024-760>, hint Let M be the midpoint of PQ and O' S O" cuts O" at N . Quadrilaterals SMPO' and SO"QM are...
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<Tri-2024-2109>, hint Let M be the midpoint of arc BC, then A,I,M,E are collinear and M is the center of circle BIC <BIM=<IBM. ...

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Qua-2016-528, Simson line

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