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探究平行四邊形面積(2)
Author:
Ms Wong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
兩位數加法
三位數除以一位數（二）
異分母分數減法
Discover Resources
以剪貼比較圖形大小 題1
弹簧
題七
複變數函數
劉虹圻 內心
Discover Topics
Linear Programming or Linear Optimization
Probability
Plane Figures or Shapes
General Quadrilateral
Standard Deviation