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S4E08 Penrose阶梯
Author:
宋晓燕
GeoGebra
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斐波那契螺旋弧线（表格法-可动态调节）
盈利與虧蝕
平行線的判定
活动三：应用性质
科氏力 (Coriolis Force)
Discover Resources
線性規劃 - 任務1-1-5 (製造貨物問題)
分割
conjugate
多边形外角和的副本
Copy of 圓周公式應用題2
Discover Topics
Histogram
Similar Triangles
Piecewise Functions
Arithmetic
Square