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同心圓

Author:施奕瑄

New Resources

  • 兩組對邊相等和有直角的四邊形
  • 畫出對稱圖形
  • 長方體平面投影 (Codex版)
  • 找出對稱軸
  • 四邉形 (四年級) 教師版

Discover Resources

  • 兩個圓的中點軌跡
  • 重心性質
  • 正方體
  • All in one (centres of triangle)
  • 瓜豆原理——动点跟随

Discover Topics

  • Parametric Curves
  • Percentages
  • Cone
  • Combinatorics
  • Geometric Distribution
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