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椭圆的定义
Author:
jjx01
Topic:
Conic Sections
,
Ellipse
GeoGebra
New Resources
畫出對稱圖形
四邉形 (四年級) 教師版
錐體建築師
三位數除以一位數（一）
GeoGebra笔记功能体验课件
Discover Resources
t6 geobra
數字組合
Fractal Spirograph (Fractal Roulette)
正12面體內接正四面體
圓柱截面曲線
Discover Topics
Exponent
Isosceles Triangles
Cosine
Pie Chart or Circle Chart
Quadratic Equations