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勾股定理折叠问题
Author:
数豆豆
GeoGebra
New Resources
撒针估算面积实验
常见四边形是否是双心四边形
圓的基本性質
科氏力 (Coriolis Force)
异形操场
Discover Resources
fold and unflod the cone with geogebra5.0
田中的道路1
三角函數
複數：正方形內的正方形
謝爾冰司機-正方形
Discover Topics
Circumcircle or Circumscribed Circle
Plane Figures or Shapes
Arithmetic Operations
Parallelogram
Coordinates