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GeoGebra Lesson

三角形の合同と軌跡

Author:okyota

Topic:Angles, Circle, Congruence, Constructions, Equilateral Triangles, Geometry, Mathematics, Plane Figures or Shapes, Planes, Geometric Transformations, Triangles

※ まずは，[start]→[hint1]→[start]・・・

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