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GeoGebra
GeoGebra Classroom
GeoGebra
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Author:
何嘉驹
GeoGebra
New Resources
科赫雪花
圓的切線方程
撒针估算面积实验
盈利與虧蝕
活动三：应用性质
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test P1
等腰三角形 － 等角對等邊
Copy of 固定周界的長方形的面積變化
图形的旋转
二次函數圖像
Discover Topics
Means
Fractal Geometry
Square
Difference and Slope
Circle