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Author:
莊秉洋
GeoGebra
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比較五件物件的重量
异形操场
椭圆内切圆链
正方形雪花图案
湖南省中职数学教师省培(GeoGebra培训案例)
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分數乘法_李樂雯
和差角公式几何证明
IMO2015C
三角形的簡介
椭圆的离心率
Discover Topics
Polygons
Parametric Curves
Circumcircle or Circumscribed Circle
Perimeter
Mathematics