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Author:
军云
GeoGebra
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活动三:应用性质
椭圆内切圆链
比較五件物件的重量
球体的截面
科赫雪花
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HKCEE 2011 Q17
托勒密定理推廣到任意四邊形二
拋物線的參數
斜率大小
數學素養試題
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Incircle or Inscribed Circle
Quadratic Functions
Pyramid
Equilateral Triangles
Vectors