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5角形の外角の和

Author:Tsuyoshi Yamamoto

New Resources

  • 接点の作る円は内接円
  • 直線の軌跡
  • 目で見る立方体の2等分
  • sine-wave
  • コイン投げと樹形図

Discover Resources

  • ピタゴラス
  • 傍心三角形と垂足三角形の関係
  • 2次曲面
  • 立方体の裏返し設計図2
  • 円周角 new version(Angles at Circumference)

Discover Topics

  • Volume
  • Geometric Transformations
  • Planes
  • Variance
  • Fractal Geometry
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