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GeoGebra
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GeoGebra
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Author:
i景然
GeoGebra
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直線的斜率
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
第八周作业3
Discover Resources
極線對偶定理 / polar duality theorem
My GGB Book
四邊形四個九點圓共點
CIRCLE
函数作图工具的副本
Discover Topics
Function Graph
Reflection
Triangles
Distributions
Rotation