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作者：
mattewpetrovich
GeoGebra
最新資源
Perpendicular Lines: Quick Exploration
Squares Question
What Do You See?
挂谷问题——三尖瓣形
What Do You See? (2)
探索資源
Six Masses with Springs
Constructing segment of length square root of n
circle
ghgdh
Area of a Parallelogram Demonstration
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梯形
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