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老師講解8
Author:
陳家豪
GeoGebra
New Resources
錐體建築師
球体的体积推导（优化版）
畫出對稱圖形
四邉形 (四年級) 教師版
異分母分數減法
Discover Resources
Ray tracing
過圓內C點的弦中點軌跡
幾何鋪磚
Flux of a vector field
圓錐展開圖
Discover Topics
Quadrilaterals
Translation
Rotation
Incircle or Inscribed Circle
Real Numbers