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面積題 F
Author:
spkwan
GeoGebra
New Resources
直角坐標平面上的旋轉變換
兩位數除以一位數（一）
畫出對稱圖形
三位數除以一位數（一）
四邊形的特性
Discover Resources
Erdos-Mordell 不等式
Addition and Subtraction of Directed Numbers (1) 有向數加減(1)
GGB風雲榜
正多邊形收斂
언제부터인지 몰르겟는데 ..
Discover Topics
Standard Deviation
Random Experiments
Parametric Curves
Quadrilaterals
Difference and Slope