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正九角形の外角

Author:yonekawasatoshi

New Resources

  • standingwave-reflection
  • 対数螺旋
  • 目で見る立方体の2等分
  • 小テスト
  • standingwave-plus

Discover Resources

  • エッシャーの絵と双曲線
  • 中一 比例 点の動き(使用)p118
  • 二つの正三角形
  • 余弦定理から内積へ
  • 音階(平均律)

Discover Topics

  • Sphere
  • Definite Integral
  • Arithmetic
  • Arithmetic Operations
  • Circumcircle or Circumscribed Circle
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