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固定周界的長方形面積變化
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Perimeter
,
Square
GeoGebra
New Resources
判斷球體
找出對稱軸
畫出對稱圖形
錐體建築師
兩位數除以一位數（一）
Discover Resources
cvcvxcvxcvxcv
加法運算
偏心的農夫?
棒形圖1
四下_面積（一）(學生版)
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Boxplot
Rotation
Tangent Line or Tangent
Subtraction
Mode