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如图,在平面直角坐标系中,A(-1,5),B(-1,0),C(-4,3).(1)求出△ABC的面积.(2)在图中作出△ABC关于y轴的对称图形△A1B1C1.(3)写出点A1,B1,C1的坐标.
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教案备课库《八(1)数学作业18.2.2平面直角坐标系(2)作业》真题及答案
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