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圓周角
Author:
周桂名
Topic:
Circle
發現圓周角與所對弧的關係
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
三位數除以一位數（一）
兩位數加法
兩位數除以一位數（二）
Discover Resources
funny draw
下和
正四角柱
鏡射的副本
在数轴上表示根号数-表格区
Discover Topics
Triangles
Algebra
Linear Programming or Linear Optimization
Stochastic Process or Random Process
Isosceles Triangles