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Find the maximum area of triangle ABC.
Author:
johnmayhk
GeoGebra
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三位數除以一位數（一）
画直线等分三角形的面积
兩位數除以一位數（一）
【案例】2013年安徽高考15题
異分母分數減法
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Cube
轨迹方程
拋物線3-平行四邊形法
动感数学
數學素養試題
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Polygons
Quadratic Functions
Correlation
Sequences and Series
Congruence