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正三角形內一點P, 到三頂點距3,4,5
Author:
Ho-Kai Chen
GeoGebra
New Resources
兩位數除以一位數（二）
柱體建築師
四邊形的特性
兩組對邊相等的四邊形
找出對稱軸
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waaachen
Where is Micky?
GeoGebra使用指南
國旗上傳測試
教學成果
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Incircle or Inscribed Circle
Poisson Distribution
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Cube