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sym1
Author:
Kwok Man Fai
GeoGebra
New Resources
判斷球體
直角坐標平面上的旋轉變換
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
Discover Resources
圓的基本慨念
正n星角
三角形内角和，演示
上課
From Bra chart to Broken line graph
Discover Topics
Similar Triangles
Fractions
Arithmetic Operations
Rotation
Plane Figures or Shapes