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Author:
lu xinsheng
GeoGebra
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椭圆内切圆链
科赫雪花
第三周作业效果演示
第八周作业2
撒针估算面积实验
Discover Resources
动态展示圆面积的构成
Escher 階梯 (Penrose Stair)
Ex. 10C Q.8b
勒洛三角形(方型鑽子模型)
动点在折线或多边形上做匀速运动的实现方法-单位向量法
Discover Topics
Power Functions
Angles
Parallelogram
Isosceles Triangles
Algebra