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Author:
kaho_chee
GeoGebra
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四邊形的特性
兩位數除以一位數（一）
四邉形 (四年級) 教師版
判斷球體
兩組對邊相等的四邊形
Discover Resources
以量角器量度角
角錐體積
翻轉方塊(雙開)
Copy of 方格紙上畫四邊形
Copy of 固定周界的長方形的面積變化
Discover Topics
Cosine
Unit Circle
Addition
Differential Equation
Pythagoras or Pythagorean Theorem