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Author:
chengshihfeng
GeoGebra
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拼砌四邊形
三位數除以一位數(二)
兩位數除以一位數(二)
球體建築師
畫出對稱圖形
Discover Resources
證平行四邊形 (對角線互相平分) (對邊 // 且相等)
國旗
Copy of 分數與小數
橢圓面積的計算
旋转的线段组成面
Discover Topics
Congruence
Multiplication
Step Functions
Division
Real Numbers