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GGB量筒
Author:
曾耀輝
GeoGebra
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三角函数 的副本
异形操场
折扣
平行線的判定
科赫雪花
Discover Resources
sin&cos
有向角
密鋪圖形
向量求和动画演示
椭圆的定义
Discover Topics
Circumcircle or Circumscribed Circle
Surface
Geometric Transformations
Linear Programming or Linear Optimization
Similar Triangles