如图,四边形
是矩形,
,
分别为
,
的中点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a1f25680faf9094c4172523f25f223.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34baab7062d8143c517fa45f59f98b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a1f25680faf9094c4172523f25f223.png)
2020·湖北武汉·模拟预测 查看更多[4]
2020年湖北武汉中考新动力数学预测卷62020年湖北省武汉市中考数学预测题(六)(已下线)专题15.2 锐角三角函数和解直角三角形(2)-备战2021年中考数学精选考点专项突破题集(全国通用)浙江省宁波市鄞州第二实验中学2023年中考适应性考试数学模拟预测题
更新时间:2020-10-08 16:24:15
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【推荐1】如图,在矩形ABCD中,AB=4,点E是边AD的中点,点F是对角线BD上一动点,∠ADB=30°,连接EF,作点D关于直线EF的对称点P.若PE⊥BD,则DF的长为 _____ .
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