名校
1 . 如图,在平面直角坐标系中,等边
的顶点
,正方形
的顶点都在等边
的边上,反比例函数
的图象经过点C,则k的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77cdaadb7f3e96aabb8c268d191ee0bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/8c279fe7-bf3d-41c4-b4aa-35db4101b58c.png?resizew=180)
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2 . 如图,在正方形
中,对角线
,
相交于点
,则图中的等腰直角三角形有 _____ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2023/4/28/3226345948913664/3233234568257536/STEM/00996b1368fc46cea1b00f0011b91f30.png?resizew=107)
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3 . 魏晋时期,伟大数学家刘徽利用如图通过“以盈补虚,出入相补”的方法,即“勾自乘为朱方,股自乘为青方,令出入相补,各从其类证明了勾股定理.已知四边形
、四边形
、四边形
均为正方形.
(1)若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f1f15400d48e7b756e87e3f566aabe.png)
_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.png)
_________ .
(2)连接
交
于
点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa60bf8a880815ee12087dee2e530091.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/268eb28fdae3b1ddfeb03de9590aed3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc202f77bcf327cd0ac5e0c8cbdb09c8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/25/d3d34b67-36e0-40fb-a6f5-2514919e0fee.png?resizew=204)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002767b8780fc8bf7aafc7beb2bae1e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f1f15400d48e7b756e87e3f566aabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa60bf8a880815ee12087dee2e530091.png)
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4 . 如图,已知直线
,在直线l上取点
,过
分别向x轴,y轴作垂线,交x轴于
,交y轴于
,使四边形
为正方形;在直线l上取点
,过
分别向x轴,
作垂线,交x轴于A2,交
于C2,使四边形
为正方形;按此方法在直线l上顺次取点
,依次作正方形
,
,…,
,则
的坐标为 ____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8608243758c9c96535524e2e0917862b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f35d4ede5b91b03d09a99262de2693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabf11d8ba451c6a4c2604cff07def31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d489c0b027a80c61656678cfcddccf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4825dd84ea86dc50304df2e76f1fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f5c868b3a732364b6537af74abfbc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ed6e65d71622784c139b012bab0922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/d2eac731-035f-4815-aeb5-6992029e6f61.png?resizew=225)
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5 . 一个正方形和一个直角三角形的位置如图摆放.若
,则
的大小为______ 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747ba9f94408771f540204607a4494b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/2d0af916-cb0a-4983-97b6-883588af8a57.png?resizew=140)
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2023-05-04更新
|
207次组卷
|
3卷引用:2023年吉林省长春市东北师大附中明珠学校中考二模数学试题
2023年吉林省长春市东北师大附中明珠学校中考二模数学试题(已下线)专题03正方形的性质与判定(3个知识点8种题型1个易错点中考2种考法)-【帮课堂】2023-2024学年九年级数学上册同步学与练(北师大版) 吉林省长春市南关区东北师大附中明珠学校2022-2023学年九年级下学期期中数学试题
6 . 如图
是
的高,
,若
,
,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81e24376a13d648c2ed0dc73bc710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c1e75eb744576c32eed3f9d20f9558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40560ea08d6cd8c1d4d9661ee6faaa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/27/c6014b3f-3faf-4439-b545-79ef86dfb704.png?resizew=100)
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7 . 如图,在
中,
,D为
中点.点E为
外一点,
,且
,连接
,则
长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41aea57fd2e1d49d041e637ceffe363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0f05caa29812cc6f00e5ef1a92af25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f306ba11b8632c1ca25bccf19f321bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/97a83765-e1b1-4031-af23-2826a297d9e9.png?resizew=217)
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8 . 学习了四边形之后,若用如图所示的方式表示四边形与特殊四边形的关系,则图中的“A”表示____ ;“B”表示____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/18/1813fb36-171d-43b8-a894-fc39a1a0bc03.png?resizew=260)
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9 . 正方形
的边长为8,点
、
分别在边
、
上,将四边形
沿
折叠,使点
落在
处,点
落在点
处,
交
于
.以下结论:①当
为
中点时,
三边之比为
;②连接
,则
;③当
三边之比为
时,
为
中点;④当
在
上移动时,
周长不变.其中正确的有___________ (写出所有正确结论的序号).
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dbf33492e5223df78dea34a24ae015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d44d5798d856568f7f6e5e91269ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9889d85890b9173db0c8b1d26be8c53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dbf33492e5223df78dea34a24ae015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d44d5798d856568f7f6e5e91269ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a7531489ae6f1a169b3acfc4f5d8e1b.png)
![](https://img.xkw.com/dksih/QBM/2023/4/7/3211531408957440/3214200917016576/STEM/997351665e4448fabff1a51f04e6a58b.png?resizew=191)
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2023-04-11更新
|
325次组卷
|
2卷引用:2023年山东省济南市东南片区中考一模数学试题
名校
10 . 如图,在平面直角坐标系中,正方形
的边垂直或平行于坐标轴,直线
与正方形的边
、
分别交于点
、
(点
、
不重合),若点
的坐标为
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ebce8b2a915356ed39f36c5bad2ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/8/355f2191-d42f-47e0-b883-c5420051d6a8.png?resizew=129)
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