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Author:
陈铁成
GeoGebra
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四邊形的特性
拼砌四邊形
兩組對邊相等的四邊形
畫出對稱圖形
錐體建築師
Discover Resources
乘法公式1
Primary Mathematics
test1(尋找北極星)
Copy of 立體圖形－截面
狗绕五边形转
Discover Topics
Circumcircle or Circumscribed Circle
Median Value
Trigonometry
Confidence Interval
Variance