Grade 11 2020

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ProblemSourceTags
Problem 1Grade 11 2020AnglesGeometryInequalitiesTriangle
Problem 2Grade 11 2020AlgebraOptimizationTrigonometry
Problem 3Grade 11 2020AnglesGeometryLengthsTriangle
Problem 4Grade 11 2020DiophantineNTPowers
Problem 5Grade 11 2020ColoringCombinatoricsPolygon3D