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平行四邊形_小
Author:
keihin
GeoGebra
New Resources
双心四边形
撒针估算面积实验
龙形曲线-分形龙2
常见四边形是否是双心四边形
比較五件物件的重量
Discover Resources
內切圓滾動
Slope of a St. Line (formula)
Add Constant in Junior statistic
椭圆第一定义
线性规划
Discover Topics
Vectors 2D (Two-Dimensional)
Linear Functions
Centroid or Barycenter
Statistical Characteristics
Equations