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ie 6
Author:
LAM YU SANG
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
画直线等分三角形的面积
四邉形 (四年級) 教師版
判斷球體
Discover Resources
極線對偶定理 / polar duality theorem
平行四邊形有甚麼特性?
滑桿4
表示數線上的位置的副本
正方体与球面的相交曲面
Discover Topics
Special Points
Curve Sketching
Rotation
Difference and Slope
Polygons