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合 24（附答案）
Author:
Anthony OR 柯志明
GeoGebra
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兩位數加法
畫出對稱圖形
兩組對邊相等的四邊形
算柱 (兩位數)
找出對稱軸
Discover Resources
用面積逼近圓周率
Drawing quadrilaterals on the grid or the pinboard
分2
軌跡圖
HW question locus 2
Discover Topics
Inequalities
Reflection
Fractions
Median Value
Means