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GeoGebra
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GeoGebra
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GeoGebra
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内外弦图
Author:
叶明杰
GeoGebra
New Resources
算柱 (兩位數)
錐體建築師
判斷球體
畫出對稱圖形
三位數除以一位數（一）
Discover Resources
三角形的四心 - 昱崧同學
小学奥数
growth
Time
水流問題(黑板)
Discover Topics
Trigonometric Functions
Hypothesis Testing
Incircle or Inscribed Circle
Area
Line Segment