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正十二面體內接正四面體或內接正六面體
Author:
侯杰材
GeoGebra
New Resources
GeoGebra笔记功能体验课件
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
兩組對邊相等的四邊形
異分母分數減法
Discover Resources
Roger Test Draw
周界4B (1)
圓與切線
Copy of 分數與小數
学用数学 S0
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Mathematics
Rotation
Arithmetic
Pie Chart or Circle Chart
Random Experiments