如图,在每个小正方形的边长为1的网格中,点
,
在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/c8ff657b-c7f9-427f-a099-ab4a4c108116.png?resizew=141)
(1)
的长为______ ;
(2)若以
为边的矩形
,其面积为11.请用无刻度的直尺,在如图所示的网格中,画出矩形
,并简要说明点
,
的位置是如何找到的(不要求证明)______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/c8ff657b-c7f9-427f-a099-ab4a4c108116.png?resizew=141)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
更新时间:2024-01-04 22:53:05
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【推荐1】如图,在边长都是1的小正方形组成的网格中,
,
,
,
均为格点.
(Ⅰ)线段
的长等于__ ;
(Ⅱ)若点
,
分别为
,
上的点,且满足
,请你借助网格和无刻度直尺,画出满足条件的点
,
,并简要说明你是怎么画的.__
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(Ⅰ)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(Ⅱ)若点
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35225ab904284b9ae5a4ab3b7bc7aee0.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/ac398c14-171c-49fa-b9b8-be59a36c5678.png?resizew=170)
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【推荐2】如图,在边长为1的小正方形网格中,点A、B、C、D都在这些小正方形的的顶点上,AC与BD相交于点O,则tan∠AOD=___________
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494270964621312/2494451213901825/STEM/2e99c7515ae44a06b149df53b1e15304.png?resizew=132)
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【推荐1】如图,
是等腰直角三角形,
,
,点
是
上的一个动点(点
与点
、
不重合),过点
分别作
于点
,
于点
,连接
.
![](https://img.xkw.com/dksih/QBM/2023/1/12/3151428588937216/3169098948632576/STEM/a0878286eaf2436f80b2f3cff5a49679.png?resizew=143)
(1)四边形
的形状是______ ;
(2)线段
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2023/1/12/3151428588937216/3169098948632576/STEM/a0878286eaf2436f80b2f3cff5a49679.png?resizew=143)
(1)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fce76109c3b574feaca9cd7029c2875.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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【推荐2】如图,在
中,
,点
为
的中点,
是
的平分线,
交
于
,则四边形
的形状是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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【推荐1】如图,正方形中,点E是边
上的动点(不与点C、D重合),以
为边向右作正方形
,连接
,点H是
的中点,连接
、
.下列结论:①
;②
平分
;③若
,
,则
; ④若
,则
.其中正确的有
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【推荐2】如图,已知正方形
的边长为
分别是
边上的点
且
将
绕点D逆时针旋转
,得到![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
若
则
的长为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
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【推荐1】如图,已知正方形
的边长为4,以点A为圆心,2为半径作圆,E是
上的任意一点,将线段
绕点D顺时针方向旋转
并缩短到原来的一半,得到线段
,连接
,则
的最小值是________ .
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【推荐2】如图,在矩形ABCD中,
,对角线AC,BD相交于点O,点P为边AB上一动点,连接OP,以OP为折痕,将
折叠,点A的对应点为点E,线段PE与OB相交于点F,若
为直角三角形,则BP的长为________ .
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