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黄金螺线与向日葵
Author:
lansesorry
GeoGebra
New Resources
百分數及其應用
常见四边形是否是双心四边形
撒针估算面积实验
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
不等式
正n多邊形面積逼近圓面積
斯霍滕(Schooten)定理(與角平分線定理等價)
Why same areas?
伊斯蘭窗花
Discover Topics
Ellipse
Constructions
Optimization Problems
Binomial Distribution
Square