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正方形和長方形有甚麼特性？
Author:
Anthony OR 柯志明
GeoGebra
New Resources
拼砌四邊形
兩位數加法
第八周作业
算柱 (兩位數)
柱體建築師
Discover Resources
曲線下面積
Copy of 劉徽的「割圓術」
舞动的阴阳蝴蝶
截平面
第一个绘本
Discover Topics
Plane Figures or Shapes
Cube
Numbers
Fractions
Geometric Transformations