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GeoGebra
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GeoGebra
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Author:
1041015楊山佩
GeoGebra
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空间中两直线的位置关系
兩位數除以一位數（二）
多邊形的面積
球体的体积推导（优化版）
漂亮的摇摆曲线
Discover Resources
將「文字」標示在長與寬
測試
角的認識
五年級
比較圖形大小2
Discover Topics
Arithmetic Mean
Incircle or Inscribed Circle
Statistics
Perimeter
Ratios