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三角形三边关系和三线
Author:
Pychiel Zheng
Topic:
Triangles
GeoGebra
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撒针估算面积实验
平行線的判定
第八周作业
科赫雪花
第八周作业3
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Task 4 Square
正三角形
test05
螺旋线
高中数学教材配套资源【人教】
Discover Topics
Ellipse
Angles
Piecewise Functions
Integers
Dilation