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外凸的正方形
Author:
陈宜红
Topic:
Plane Figures or Shapes
GeoGebra
New Resources
科赫雪花
三角函数 的副本
折扣
活动三：应用性质
常见四边形是否是双心四边形
Discover Resources
數字組合
Distributive Law of Multiplication 1 (乘法的分配率 1)
傅立葉
Rolling Circle
圖解直式開方
Discover Topics
Geometry
Quadratic Functions
Division
Trigonometric Functions
Vectors