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形心计算
Author:
阳光
Topic:
Centroid or Barycenter
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（一）
柱體建築師
画直线等分三角形的面积
異分母分數減法
Discover Resources
旋转体的定义
正弦线与直线
余弦定理的证明
函数作图工具的副本
Copy of 劉徽的「割圓術」
Discover Topics
Ellipse
Upper and Lower Sum or Riemann Sum
Variance
Tree Diagrams
Curve Sketching