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相同圖形的拼砌（梯形）
Author:
ho ting chit
Topic:
Trapezoid
GeoGebra
New Resources
【案例】2013年安徽高考15题
異分母分數減法
画直线等分三角形的面积
找出對稱軸
第八周作业
Discover Resources
包含除法（1 ÷分數）
數學1
test02
Chords of a Circle
双曲线第一定义
Discover Topics
Division
Circumcircle or Circumscribed Circle
Quadratic Functions
Percentages
Addition