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Author:
王正豪
GeoGebra
New Resources
三位數除以一位數（二）
画直线等分三角形的面积
找出對稱軸
判斷球體
【案例】2013年安徽高考15题
Discover Resources
圓面積計算
平行四邊形之變奏I
微分的意義
奈格爾點與葛爾崗點互為等距共軛點
[S2] a revised version of Jane’s GeoGebra file (modified by the author)
Discover Topics
Kite
Pie Chart or Circle Chart
Conic Sections
Congruence
Fractions