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椭圆的定义
Author:
GeoGebra Institute of WuXi
GeoGebra
New Resources
找出對稱軸
兩位數加法
錐體建築師
畫出對稱圖形
兩組對邊相等的四邊形
Discover Resources
中點軌跡(動點在兩圓上)
Angle between 2 planes in a cube
平面向量
拼出三角形的副本
圆锥曲线的第二定义的副本
Discover Topics
Linear Equations
Angles
Means
Frequency Distribution
Bar Chart or Bar Graph