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包絡線：橢圓
Author:
羅驥韡 (Pegasus Roe)
Topic:
Ellipse
GeoGebra
New Resources
GeoGebra笔记功能体验课件
異分母分數減法
四邉形 (四年級) 教師版
直角坐標平面上的旋轉變換
四邊形的特性
Discover Resources
遞迴數列的星星
整數的減法
謝丞宇
垂心的動畫
Fractal
Discover Topics
Equations
Incircle or Inscribed Circle
Special Points
Probability
Isosceles Triangles