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梯形有甚麼特性？
Author:
Anthony OR 柯志明
English version:
http://ggbtu.be/m79855
GeoGebra
New Resources
直線的斜率：水平變化 & 鉛垂變化
科赫雪花
异形操场
第八周作业2
比較五件物件的重量
Discover Resources
初中八年级奥数：面积与面积法
Angle between Lateral Faces 3
集合
P4菱形定義
定積分 (The Definite Integral)
Discover Topics
Inequalities
Quadratic Equations
Poisson Distribution
Confidence Interval
Cylinder