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折角平分线
Author:
孙逸旻
拖动点A，折叠纸片，使AC与BC重合
GeoGebra
New Resources
讀磅
三位數除以一位數（一）
兩位數除以一位數（一）
探究三角形的全等條件
画直线等分三角形的面积
Discover Resources
動態角=30
線性規劃 - 任務1-1-5 (製造貨物問題)
多項式
directed number_the age of father and son
tesselation
劉徽的「割圓術」的副本
Discover Topics
Centroid or Barycenter
Normal Distribution
Division
Hyperbola
Cylinder