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長方形の紙を折り曲げると二等辺三角形が

Author:Akihiko Kono

New Resources

  • フーリエ級数展開
  • アステロイド
  • standingwave-reflection-free
  • 目で見る立方体の2等分
  • sine-wave

Discover Resources

  • 【作図】円による反転
  • 円の面積
  • 重外関係と等角共役
  • doppler
  • 直方体の影(光源の高さ変化)

Discover Topics

  • Square
  • Rectangle
  • Orthocenter
  • Incircle or Inscribed Circle
  • Rational Numbers
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