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AlexTest
Author:
AlexWang
GeoGebra
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百分數及其應用
异形操场
比較五件物件的重量
撒针估算面积实验
常见四边形是否是双心四边形
Discover Resources
根據百分率找數量(一):例1
test2
Similar triangles in a triangle
葛爾崗點
除法Q5
Discover Topics
Vectors 3D (Three-Dimensional)
Constructions
Parametric Curves
Orthocenter
Cone