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2つの円の位置関係と共通接線 のコピー

Author:tatsuya9, MathClassL
Topic:Circle, Circumcircle or Circumscribed Circle, Diagrams, Geometry, Incircle or Inscribed Circle, Intersection, Mathematics, Planes, Tangent Line or Tangent

2つの円の平行線(円が動く)

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