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Author:
Lin Ching Chieh
GeoGebra
New Resources
四邊形的特性
異分母分數減法
兩位數除以一位數（一）
三位數除以一位數（一）
算柱 (兩位數)
Discover Resources
圓和弦圓和弦
等腰直角三角形
俄羅斯方塊
数学
Ex5C#11
Discover Topics
Upper and Lower Sum or Riemann Sum
Rhombus
Vectors 3D (Three-Dimensional)
Subtraction
Hyperbola