如图,在平行四边形
中,E、F分别是边
上的点,且
.求证:
![](https://img.xkw.com/dksih/QBM/2023/3/2/3185792532193280/3185807711944704/STEM/15bb848d743647249466e61ec24bdf01.png?resizew=238)
(1)
;
(2)四边形
是矩形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f0dc39b4e4d3dcbf0baebc83221238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa569a2a4d345ddcaceb52e706dee1b7.png)
![](https://img.xkw.com/dksih/QBM/2023/3/2/3185792532193280/3185807711944704/STEM/15bb848d743647249466e61ec24bdf01.png?resizew=238)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ae71e067d26d79a1e60ac6edcb127c.png)
(2)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3c15b30bd155641e548a7d8c172dd4.png)
2023八年级下·全国·专题练习 查看更多[6]
(已下线)专题18.2.1 矩形的性质与判定(知识解读)-2022-2023学年八年级数学下册《同步考点解读·专题训练》(人教版)(已下线)18.2.1 矩形 -2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(人教版)(已下线)专题5.1 矩形的性质与判定(专项训练)-2022-2023学年八年级数学下册《同步考点解读·专题训练》(浙教版)广东省江门市第一中学景贤学校2022-2023学年八年级下学期期中数学试题 2023年新疆维吾尔自治区多校学业测评一模数学试题(已下线)第02讲 矩形的性质与判定(知识解读+真题演练+课后巩固)-2023-2024学年九年级数学上册《知识解读·题型专练》(北师大版)
更新时间:2023-03-02 11:25:17
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解答题-作图题
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名校
【推荐1】已知:如图,在
中,点E、F为对角线BD上的点,
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的平分线
交
于点H.(要求:不写作法,保留作图痕迹)
(2)在(1)的条件下,若
,求
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(2)在(1)的条件下,若
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解答题-证明题
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【推荐2】如图,在□ABCD中,AB=3,AD=4,∠ABC=60°,过BC的中点E作EF⊥AB于F,与DC的延长线相交于点H.
(1)求证:△BEF≌△CEH;
(2)求DE的长.
(1)求证:△BEF≌△CEH;
(2)求DE的长.
![](https://img.xkw.com/dksih/QBM/2017/5/19/1690222916853760/1692683696848896/STEM/7593a560537b40c7858710d3a74285c3.png?resizew=218)
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解答题-证明题
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【推荐1】如图,菱形
中,对角线
与
相交于点
,点
是
的中点,连接
并延长到点
,使
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![](https://img.xkw.com/dksih/QBM/2022/5/19/2982660484751360/2986233033711616/STEM/4b88257f3f29459f86bd631fa75c8813.png?resizew=198)
(1)求证:四边形
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(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d000a9d441370a43debf5845f5f41142.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】如图,
是
的边
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
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