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任务2：勾股定理
Author:
陈丽婷
GeoGebra
New Resources
正方形雪花图案
龙形曲线-分形龙2
撒针估算面积实验
第八周作业2
第八周作业
Discover Resources
圖是正確的
腳踏車輪圈2
Apollonius Problem gergonne 0
GeoGebra与数学教育论坛通知
正立方體反射面
Discover Topics
LCM and GCD
Line Segment
Rotation
Trigonometry
Binomial Distribution