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多边形与圆相互滚动
Author:
朱亮
GeoGebra
New Resources
椭圆内切圆链
平行線的判定
正方形雪花图案
镂空正方体案例对比
第八周作业2
Discover Resources
已知橢圓 x^2/a^2+y^2/b^2=1 (a>b>0)
Homework4
Sierpinski Carpet
扇形旋轉
劉徽的「割圓術」的副本
Discover Topics
Algebra
Constructions
Vectors 2D (Two-Dimensional)
Similar Triangles
Statistical Characteristics