如图,正方形ABCD中,点E、F分别为AB、CD上的点,且AE=CF=
AB,点O为线段EF的中点,过点O作直线与正方形的一组对边分别交于P、Q两点,并且满足PQ=EF,则这样的直线PQ(不同于EF)有_____ 条.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/2016/10/13/1574246803496960/1574246809714688/STEM/24694c71dd5e48faba4d204bf84234ad.png?resizew=148)
2016·福建南平·中考真题 查看更多[4]
更新时间:2016-10-12 18:00:12
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【知识点】 根据正方形的性质与判定证明
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【推荐1】如图,点A是x轴上的一个动点,点C在y轴上,以AC为对角线画正方形ABCD,已知点C的坐标是
,设点A的坐标为
.
当
时,正方形ABCD的边长![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
连接OD,当
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______ .
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【推荐2】如图,在正方形
中,直线
分别过
三点且
,若
与
的距离为
,
与
的距离为
,则正方形
的边长是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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