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pyramid
Author:
Wong Ka Leong
GeoGebra
New Resources
斐波那契螺旋弧线（表格法-可动态调节）
折扣
常见四边形是否是双心四边形
活动三：应用性质
科赫雪花
Discover Resources
尤拉線
廻轉式壓縮機運轉圖
Angle between line & plane
砍价
椭圆的离心率
Discover Topics
Definite Integral
Plane Figures or Shapes
Geometric Transformations
Cube
Mathematics