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waaachen
Author:
陳兪宏
waaachen
GeoGebra
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球體建築師
画直线等分三角形的面积
三位數除以一位數(一)
異分母分數減法
畫出對稱圖形
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畫三角形 題1f
Quiz on Special Lines in Triangles 三角形內的特殊線:測驗
象形圖 (找出最多/最少)
ggb 優良作品 _10
劉徽的「割圓術」的副本
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Ellipse
Division
Intersection
Set Theory
Parametric Curves