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Dodecahedron
Author:
chen mingchuan
GeoGebra
New Resources
直角坐標平面上的旋轉變換
四邊形的特性
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
三位數除以一位數（二）
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normal
數論淺談: 整數解之奧秘
Geometry: Angles Sum of Triangle (幾何：三角形內角和)
Question 8
拋物線五-包絡線法
Discover Topics
Hypothesis Testing
Derivative
Geometric Mean
Surface
Vectors