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Author:
Ng Cheuk Hei
GeoGebra
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【案例】2018年全国1卷理科12题
兩位數加法
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
畫出對稱圖形
Discover Resources
Prime Factors - step by step
相似三角形條件 - 三邊成比例
Quiz on True Bearings 真方位角：測驗
二次函数y=ax²（a＞0)
球表面积的一种特殊推导
Discover Topics
Probability
Isosceles Triangles
Random Variables
Right Triangles
Translation