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四邊形四個九點圓共點

Author:連琨銘

New Resources

  • 畫出對稱圖形
  • 兩組對邊相等和有直角的四邊形
  • 【案例】圆柱体内放置一个大球六个小球
  • 【案例】2018年全国1卷理科12题
  • 拼砌四邊形

Discover Resources

  • 行程圖 (Travel Graph)
  • 對數的遞增或遞減(底數小於1)
  • 曲柄搖桿接雙搖桿
  • 特殊時鐘模擬
  • Copy of 多边形外角和

Discover Topics

  • Line Segment
  • General Quadrilateral
  • Pythagoras or Pythagorean Theorem
  • Cosine
  • Vectors 2D (Two-Dimensional)
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