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以面積固定平行線軌跡
Author:
+x sir
GeoGebra
New Resources
多邊形的面積
直線的斜率
双心四边形
比較五件物件的重量
折扣
Discover Resources
內心
平行四邊形
橢圓
比例線段截面積
Rotation（旋轉）
Discover Topics
Linear Functions
Straight Lines
Hypergeometric Distribution
Intersection
Confidence Interval