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正9邊形
Author:
李春培
正9邊形
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
判斷球體
找出對稱軸
【案例】2013年安徽高考15题
【案例】2018年全国1卷理科12题
Discover Resources
Sine Formula 正弦公式
圓錐截痕
分數(二)
旋轉體:8y² = x²(1 - x²)
圆周率π的收敛极快算法(代数几何方法)
Discover Topics
Square
Random Experiments
Linear Functions
Root
Vectors 2D (Two-Dimensional)