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几何体
Author:
DongHai Zhang
预习相关知识
GeoGebra
New Resources
sanjiaohanshu
異分母分數減法
GeoGebra笔记功能体验课件
拼砌四邊形
【案例】2018年全国1卷理科12题
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練習 - 逆時針旋轉（三角形）
Apollonius Problem poncelet fouche
Cube in Perspective 正方體的透視
求一數是另一數的幾分之幾？
长方形边线展开
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Symmetry
Rotation
Perimeter
Means
Incircle or Inscribed Circle