名校
1 . 如图在菱形
中,对角线
相交于点O,E为
的中点,且
,则菱形
的周长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf461f23743af212618a987311a87a33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/22/be705ed6-77c5-43d7-a1e3-847da0e14304.png?resizew=210)
A.20 | B.40 | C.60 | D.80 |
您最近一年使用:0次
2023-09-29更新
|
237次组卷
|
2卷引用:重庆市九龙坡区杨家坪中学2022-2023学年八年级下学期期中数学试题
名校
2 . 如图,在平面直角坐标系中,直线
的解析式为
,与x轴交于点C.直线
上有一点B的横坐标为
,点A是
的中点.
(1)求直线
的函数表达式;
(2)P,Q分别为y轴和直线
上的动点,使
的周长最小,求周长的最小值;
(3)直线
与y轴交于点H.将
沿
翻折得到
,M为直线
上一动点,N为平面内一点,是否存在这样的点M、N,使得以H、M、N、G为顶点的四边形是菱形,若存在,直接写出点M的坐标,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b238134d9f4b7a84aff9230c241fb45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/14/826f81a0-37ac-45f6-b012-b92046a5f8e3.png?resizew=297)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)P,Q分别为y轴和直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd1ae36724363d23865f9bc2fc6ecc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3523f5509a516a598452fdc34be5749b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
3 . 已知菱形
在平面直角坐标系的位置如图所示,顶点
,
,点
是对角线
上的一个动点,
,当
最短时,点
的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c905c723e30f28088fd7f7dc09ef1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288153cec163ec93e0ca05149725313c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5fcce10d4243fb2a8351db179c2c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e2f295ed0a7d3a863795226348e255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/4/18e9e806-61e9-42ff-ab74-a23fd6e45b9e.png?resizew=152)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-09-22更新
|
160次组卷
|
2卷引用:重庆市九龙坡区重庆实验外国语学校2022-2023学年八年级下学期6月月考数学试题
名校
4 . 如图,菱形
中,
,
,点E是
的中点,在对角线上一点P,则
的最小值是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172ff1d1010a9a76e1482b0b86b201d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/6d00935f-f3e2-4a14-b8f2-cbd4d2474601.png?resizew=109)
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名校
5 . 如图,在平面直角坐标系中,直线AB与x轴交于点A,直线
:
与直线
交于点C,已知
.
(1)求直线
的解析式;
(2)如图1,点P为直线
上一动点且位于点C的左侧,M、Q为y轴上两个动点,且
,当
时,求
最小值;
(3)如图2,将
沿着射线
方向平移,平移后A、O、B三点分别对应D、E、F三点,已知动点H在直线
上,在平面直角坐标系中是否存在点N,使得以H、N、D、F四个点为顶点的四边形为菱形,若存在,请直接写出点N的横坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/9f38a6b8-7776-4714-aa98-8db58a159a65.png?resizew=380)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)如图1,点P为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65af7931938c7fcda55657f61bf4fdb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8e63784fb292d55e20553035253dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5e3de09170cb3b9dc79f03a366decf.png)
(3)如图2,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
6 . 如图,已知菱形
的边长为
,点
是对角线
上的一动点,且
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c858454c801c04de4c11d1ed132f147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d822011af3f7f2d2be3921999be3faa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/d8e65547-f4c9-49bd-9702-fc722a94bfc2.png?resizew=149)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 如图,赶水桥城广场菱形(菱形的对角线互相垂直平分)花坛
的周长是32米,
,则A,C两点之间的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/11/2c20b375-b2d0-4db3-aa25-76574dff7e8c.jpg?resizew=145)
A.4米 | B.4![]() | C.8米 | D.8![]() |
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8 . 如图1,在菱形
中,
,
,动点
从点
出发,以每秒
个单位的速度沿
的方向运动,到终点
停止:动点
在射线
上运动,且满足
,点
随点
停止终止运动.若
,
,设运动时间为
.请解答下列问题:
(1)请直接写出
,
与
之间的函数关系式及
的取值范围,并在图
所示的平面直角坐标系中画出该函数的图象;
(2)观察
的函数图象,写出该函数的一条性质;
(3)根据图象,直接写出
时
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3087da5c11909dab613378fee8d471fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67763319919ab282ca9327f55656a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48478f57bc46c65a0889ef5a4a6ef4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb4c7d3f85150e340e3d342416d769e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/12/d5432e0b-6e1a-4160-82bd-4929f2d5ebbe.jpg?resizew=159)
(1)请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/12/645c3509-364f-41b2-8209-b5c42e29bc3f.jpg?resizew=185)
(2)观察
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(3)根据图象,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df86b0da538701c08fb214608e062372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
9 . 如图,在菱形
中,对角线
与
相交于点O,若
,
,则
的长为 _____
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077cbf5726a0ae7c807d2f978e5dfe78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f56c2b5b52384d6547bde2900969fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/10/b7775570-cc3e-4bfb-b0bc-0373b4a9b808.png?resizew=173)
您最近一年使用:0次
2023-09-02更新
|
103次组卷
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5卷引用:重庆市南岸区南岸区茶园新城初级中学校2023-2024学年九年级上学期10月月考数学试题
名校
10 . 如图,菱形
中,对角线
、
相交于点O,E为
边中点,菱形
的周长为28,则
的长等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
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2023-09-01更新
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123次组卷
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16卷引用:重庆市永川区2022-2023学年八年级下学期期末数学试题
重庆市永川区2022-2023学年八年级下学期期末数学试题2015-2016学年江苏省江阴市长寿中学八年级下第一次月考数学试卷青海省西宁二十一中2016-2017学年八年级6月月考数学试题湖北省武汉市汉阳区2015-2016学年八年级下学期期中考试数学试题(已下线)学科网2018年5月2018届九年级第三次模拟大联考(湖北)-数学内蒙古呼伦贝尔市根河一中2017-2018学年八年级下学期期中考试数学试题【校级联考】河北省沧州市青县2017-2018学年八年级下期中数学试卷广东省汕头市龙湖实验中学2019-2020学年八年级下学期期中数学试题广东省珠海市第九中学2020-2021学年八年级下学期期中数学试题湖北省十堰市竹溪县思源实验九年一贯制学校第一教联体2022-2023学年八年级下学期期中数学试题青海省海东市2022-2023学年八年级下学期期末数学试题江苏省南京市栖霞区南京师范大学附属中学仙林学校初中部2022-2023学年八年级下学期3月月考数学试题云南省西双版纳傣族自治州景洪市景哈乡中学2022-2023学年九年级上学期11月月考数学试题河北省保定市河北保定师范附属学校2023-2024学年九年级上学期月考数学试题湖南省长沙市湖南师大附中星城实验中学2023-2024学年八年级下学期第一次月考数学试题2024年甘肃省武威市凉州区武威二十六中教研联片中考二模数学试题