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平行四边形到矩形
Author:
华人
Topic:
Parallelogram
平行四边形到矩形
GeoGebra
平行四边形到矩形
New Resources
平行線的斜率
撒针估算面积实验
活动三：应用性质
圓的切線方程
第八周作业1
Discover Resources
test for fun
vectore_four stack pile
正多面體
Copy of area
Pyth. theorem
Discover Topics
Hyperbola
Geometric Mean
Coordinates
Cone
Real Numbers