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Author:peter

New Resources

  • サイクロイド
  • 正17角形 作図 regular 17-gon
  • 正17角形 作図 regular 17-gon 2
  • 目で見る立方体の2等分
  • standingwave-reflection

Discover Resources

  • 内角と外角
  • sin x /x
  • ジョンソンの定理
  • 傍心三角形と心
  • チェバの定理動き付き新

Discover Topics

  • Arithmetic
  • Fractal Geometry
  • Sphere
  • Rational Numbers
  • Perimeter
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