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任务9：内凹的正方形
Author:
陈丽婷
GeoGebra
New Resources
小数 的副本
sanjiaohanshu
國旗 (作圖步驟直接餵給 Claude)
Earth with coastline
球體建築師
Discover Resources
三角函數的精確值
橢圓之極偶 / polarity for ellipse
Boxes
正五角錐
圓形移動面積
Discover Topics
Hyperbola
Geometric Mean
Addition
Cuboid
Curve Sketching