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Author:
yuchengda
GeoGebra
New Resources
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
畫出對稱圖形
兩組對邊相等的四邊形
兩位數加法
Discover Resources
翻轉方塊(單開)
angles in the same segment
任意角的三角函数
重心
正多邊形的對角線
Discover Topics
Arithmetic Operations
Functions
Arithmetic
Hypothesis Testing
Angles