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Rectangle_03
Author:
iedc
GeoGebra
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【案例】2013年安徽高考15题
兩組對邊相等的四邊形
柱體建築師
算柱 (兩位數)
四邊形的特性
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範例:畫圈圈的筆
類尺規作圖
三角形四心
MCYO 乘法大師
parabola 抛物线方程求解
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Rational Numbers
Diagrams
Real Numbers
Hypothesis Testing
Polygons