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平行四邊形有甚麼特性？
Author:
Anthony OR 柯志明
Topic:
Parallelogram
English version:
http://ggbtu.be/m79826
GeoGebra
New Resources
柱體建築師
四邉形 (四年級) 教師版
球体的体积推导（优化版）
找出對稱軸
兩位數除以一位數（一）
Discover Resources
cute panda
Homework1
分解三棱柱
梯形的面積
折長方形 62326虹圻
Discover Topics
Vectors 3D (Three-Dimensional)
Hypothesis Testing
Distributions
Statistics
Difference and Slope