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li tan yong dui cheng xing qiu zui xiao zhi
Author(s): 
Pages: 41-42
Year: Issue:  Z2
Journal: Required Reading for Junior Middle School Students

Keyword:  对称性最小值对角线特殊条件动点特殊图形正方形中点对称点题目;
Abstract: <正>在有关动点类的问题中,有一些是属于在特殊图形中求最小值的题目.解这些题目,通常是应用其对称性以及它们所具有的特殊条件,来为欲求的结果找到途径.例1如图1,正方形ABCD中,AB=4,E是BC的中点,点P是对角线
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