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優良作品1
Author:
Ching-Hui Chou
GeoGebra
New Resources
拼砌四邊形
第八周作业
Nested spiral octagon
算柱 (兩位數)
直角坐標平面上的旋轉變換
Discover Resources
Decimal
尋找三角形的內切圓
時鐘與數學
Copy of 包含除法（整數或分數 ÷ 分數）
【高中物理】凸透镜成像
Discover Topics
Integers
Logarithm
Variance
Definite Integral
Rhombus