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立方体の中の正四面体の中の内接球

Author:増永雄大
Topic:Cube, Sphere, Volume

New Resources

  • サイクロイド
  • 目で見る立方体の2等分
  • 6章⑥三角柱の展開図
  • 等積変形2
  • 対数螺旋

Discover Resources

  • projection of x onto 3D lines
  • 集中リング
  • fold-in and pull-out
  • 等角共役点が内接楕円を作ることの証明
  • 等積変形の活用

Discover Topics

  • Angles
  • Pythagoras or Pythagorean Theorem
  • Trapezoid
  • Polygons
  • Area
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