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相同圖形的拼砌（有兩組平行線的四邊形）
Author:
ho ting chit
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
【案例】2013年安徽高考15题
四邊形的特性
第八周作业
Discover Resources
Symmetric設計對稱圖案(一條對稱軸)斜1
Solution_to_a_System_of_Linear_Equations
P4 多邊形周界01 測試
直角三角形の三角比
圆的有关概念
Discover Topics
Sequences and Series
Isosceles Triangles
General Quadrilateral
Piecewise Functions
Parallelogram