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賺賠：例2
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩位數除以一位數（二）
判斷球體
画直线等分三角形的面积
兩組對邊相等的四邊形
畫出對稱圖形
Discover Resources
四面體 ABCD, AB 與 CD 距離
GGB8
我的第一个绘本
约瑟夫问题
椭圆内切圆链
Discover Topics
Confidence Interval
Fractal Geometry
Natural Numbers
Parametric Curves
Vectors 2D (Two-Dimensional)