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tannew
Author:
小数点爱数学
GeoGebra
New Resources
椭圆内切圆链
撒针估算面积实验
异形操场
斐波那契螺旋弧线(表格法-可动态调节)
正方形雪花图案
Discover Resources
三角形內切三圓
怪函數
angles sum of a triangle 2
平行四邊形面積
畢氏定理
Discover Topics
Sine
Function Graph
Exponent
Rhombus
Root