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3线段的垂直平分线线段的垂直平分线专题训练(三)线段垂直平分线解:连接AC,ADBC,BDCD,AD垂直平分BC,ABAC,ABBDACDC,又ABBDDE,ACDCDEDCCE,即ACCE,点C在AE的垂直平分线上解:OP平分MON,POAPOB,PAOM,PBON,OAPOBP90,又OPOP,OAPOBP,OAOB,APBP,OP垂直平分AB解:DE垂直平分AB,AEBE,BCCEBE8,BCCEAE8,即ACBC8,又ACBC2,AC5,BC3,ABAC5,BC3
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