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錢幣換算
Author:
Tsai, Dung Jung
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
兩位數加法
錐體建築師
Discover Resources
基測試題旋轉
正n邊形內角與外角
推移（x 方向）
國旗1
Cycloid
Discover Topics
Vectors 2D (Two-Dimensional)
Random Experiments
Reflection
Equations
Sine