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抛物线顶点形成椭圆动画
Author:
赵林
抛物线顶点形成椭圆动画
GeoGebra
New Resources
畫出對稱圖形
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
判斷球體
算柱 (兩位數)
Discover Resources
和差角公式几何证明
勝者即正義
立體ㄉ
旋轉長方形
紙張的長與闊
Discover Topics
Square
Rational Numbers
Linear Functions
Polygons
Power Functions