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画椭圆
Author:
wes kong
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
畫出對稱圖形
錐體建築師
三位數除以一位數（二）
Discover Resources
公因數與公倍數
Quartiles and Box Plot (two data sets) 四分位數與框線圖（比較兩組數據）
國旗(青天白日)
算幾不等式
平面几何问题
Discover Topics
Vectors
Planes
Root
Stochastic Process or Random Process
Fractions