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Geometry

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Middle European Mathematical Olympiad 2025 Problem I-3Middle European Mathematical Olympiad 2025CircleCircumcircleGeometryIncircleTriangle
Middle European Mathematical Olympiad 2025 Problem T-5Middle European Mathematical Olympiad 2025CircumcircleGeometryParallelogramTangentTriangle
Middle European Mathematical Olympiad 2025 Problem T-6Middle European Mathematical Olympiad 2025AnglesCircumcircleGeometryTriangle
Grade 9 2024 Problem 3Grade 9 2024AnglesGeometryTriangle
Grade 9 2025 Problem 5Grade 9 2025AnglesGeometryParallelogram
Grade 9 2026 Problem 3Grade 9 2026AreaCoordGeometrySquare
Grade 10 2024 Problem 4Grade 10 2024AnglesGeometryTrapezoid
Grade 10 2025 Problem 4Grade 10 2025CircumcircleGeometryTriangle
Grade 10 2026 Problem 1Grade 10 2026AreaGeometryOptimizationRight triangle
Grade 10 2026 Problem 5Grade 10 2026CircumcircleGeometryOrthocenterTriangle
Grade 11 2024 Problem 2Grade 11 2024AlgebraGeometry
Grade 11 2024 Problem 3Grade 11 2024AnglesEquilateralGeometry
Grade 11 2025 Problem 4Grade 11 2025CircumcircleGeometryTriangle
Grade 11 2026 Problem 4Grade 11 2026CircleGeometryIncircleTriangle
Grade 12 2024 Problem 4Grade 12 2024AnglesCircumcircleGeometryIncircleTriangle
Grade 12 2025 Problem 4Grade 12 2025AnglesGeometryIsoscelesTriangle
Grade 12 2026 Problem 2Grade 12 2026CircleCircumcircleGeometryRight triangle