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平行四邊形
Author:
eyun306
Topic:
Parallelogram
GeoGebra
New Resources
拼砌四邊形
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
【案例】2013年安徽高考15题
畫出對稱圖形
Discover Resources
畢式定理 (01)
平方根
Locus (Segment)
圖形拼砌
Completing the square(配方法)
Discover Topics
Area
Secant Line or Secant
Square
Continuity
Scatter Plot