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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
畫出對稱圖形
異分母分數減法
四邊形的特性
找出對稱軸
錐體建築師
Discover Resources
Sum of First n Cubes 首n個立方數之和
平移動畫(平移加滑桿)
y = sin(ωx)的圖像
螢橋國中 鄭毅華
图形的放大与缩小.许兴华数学
Discover Topics
Random Experiments
Arithmetic Operations
Mode
Differential Equation
Geometric Transformations