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Author:
tan90
GeoGebra
New Resources
近似值：有效數字
三位數除以一位數（一）
判斷球體
拼砌四邊形
異分母分數減法
Discover Resources
Angle between line & plane
作業1:內心
正十二面體裁邊 (Chamfered Dodecahedron)
幾何板
可拖动A、B 改变形状
Discover Topics
Incircle or Inscribed Circle
Equations
Fractions
Normal Distribution
Linear Equations