名校
1 . 如图,在矩形
中,
,点M,N,P分别在
,
,
上运动,且四边形
的面积始终等于24,则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/297ed112-cc3d-4ba7-b8e9-1cfb28b48714.png?resizew=195)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53abbd672b82a02c4975f99fbbd2c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb1548ddc0e5536a35b1bd78c4e7cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/297ed112-cc3d-4ba7-b8e9-1cfb28b48714.png?resizew=195)
A.10 | B.12 | C.14 | D.16 |
您最近一年使用:0次
2023-03-27更新
|
470次组卷
|
3卷引用:山西省吕梁市离石区江阴初级中学2022-2023学年八年级下学期6月月考数学试题
山西省吕梁市离石区江阴初级中学2022-2023学年八年级下学期6月月考数学试题广西南宁市青秀区第三中学初中部2022-2023学年八年级下学期3月月考数学试题(已下线)期中押题预测卷(2)(考试范围:第16-18章)-【帮课堂】2022-2023学年八年级数学下册同步精品讲义(人教版)
名校
2 . 如图,在
中,
,P为边
上一动点,
于E,
于F,动点P从点B出发,沿着
匀速向终点C运动,则线段
的值大小变化情况是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/f5a058e5-654b-4790-9334-806c4fc70fd5.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fb30a9d07e410ac92c34b8ad0133db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca0940f5c21431c089d4f7a221df43c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/f5a058e5-654b-4790-9334-806c4fc70fd5.png?resizew=148)
A.一直增大 | B.不变 | C.先减小后增大 | D.先增大后减小 |
您最近一年使用:0次
2023-03-25更新
|
786次组卷
|
8卷引用:山西省太原市第十二中学2022-2023学年九年级上学期月考数学试题
3 . 如图,在平面直角坐标系中,已知点
,
,将线段
先沿
轴正方向平移,然后沿
轴正方向平移,得到线段
,连接点
及其对应点
,若
,
,则点
的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f94c4f6b762fddb0e313050ef6932eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.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/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151f7aef7d0f56e18562f5a4030cf815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/18/e80092f1-82e1-4ef7-b3d6-a43973f8661e.png?resizew=194)
您最近一年使用:0次
名校
4 . 如图,菱形
的对角线
,
相交于点O,点P为
边上一动点(不与点A,B重合),
于点E,
于点F,若
,则
的最小值为_______ .
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b37625595a63cb47e1cdf9c5da40c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776e5e9395f9e5f656d3c2436f8ab4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb8899a2453170c277fb45e412a105b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
2023-03-09更新
|
506次组卷
|
4卷引用:山西省太原市成成中学校(晋源校区)2023-2024学年九年级上学期月考数学试题
山西省太原市成成中学校(晋源校区)2023-2024学年九年级上学期月考数学试题山东省烟台市蓬莱区2022-2023学年八年级上学期期末数学试题(已下线)18.2.2 菱形-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)江苏省 常州外国语学校2023-2024学年八年级下学期数学月考试题
名校
5 . 元宵佳节灯火会上,有一名摄影爱好者为了记录这次灯火会的全过程,携带无人机进行航拍.如图,摄影爱好者在水平地面上点
处测得无人机位置点
的仰角为
.无人机从点
处水平飞到点
处,
米,摄影爱好者在点
处测得点
的仰角为
.已知
为水平地面,
,(即:点
,
,
,
四点在同一平面内),求无人机距离水平地面的高度.(测角仪的高度忽略不计,参考数据:
,
,
)
![](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/903c1bb6f9fe8f9b9710683a3e601452.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/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880efdb2b4ac4861ad808e0162d082be.png)
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d2082b0e4e457c2ea1e033d69d8b39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b15906c24c41d13588f3c4b5e19086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7664a5f9b61fd010eda340986ca34b47.png)
您最近一年使用:0次
2023-03-09更新
|
140次组卷
|
3卷引用:山西省大同市第一中学校2022-2023学年九年级下学期3月月考数学试题
山西省大同市第一中学校2022-2023学年九年级下学期3月月考数学试题(已下线)2023年新疆维吾尔族自治区中考数学真题变式题20-23题广东省云浮市罗定市2023-2024学年九年级下学期期中数学试题
6 . 如图,一电线杆
的影子落在地面(
)和墙壁(
)上,经过测量,地面上的影长
米,墙壁上的影长
米.同一时刻,小明在地面上竖立一根1米高的标杆(
),量得其影长(
)为0.5米,则电线杆
的长度为______ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2299a444dcfb9133f6a82a028b1c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/13677529-0fe5-4209-a786-a07f6eba8289.png?resizew=200)
您最近一年使用:0次
2023-03-08更新
|
87次组卷
|
2卷引用:山西省大同市云州区2022-2023学年九年级上学期期末评估数学试题
7 . 如图,
是线段
在投影面P上的正投影,
,
,则投影
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/f9bcc367-79ad-4753-bba0-34932e5f5151.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cd4a1c8087ef697d82b321a3331211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41444d84331406d0a5370d6f6ad5847c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/f9bcc367-79ad-4753-bba0-34932e5f5151.png?resizew=165)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 如图,已知
的直径
,弦
,
的平分线交
于点
,过点
作
交
的延长线于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/4ecd4faa-5bb4-4448-9f04-bf81b6f9da1a.png?resizew=116)
(1)求证:
是
的切线.
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/4ecd4faa-5bb4-4448-9f04-bf81b6f9da1a.png?resizew=116)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
9 . 综合与实践.
(1)问题1:如图①,以
为基础,借助无刻度直尺和圆规作一个平行四边形,标注字母,并说明理由;
(2)问题2:如图②,在平行四边形
中,对角线
,
相交于点O,取
的中点E,连接
并延长至点F,使得
,连接
,
,出现了新的特殊四边形,请判断其中一个四边形的形状,并说明理由;
(3)问题3:如图③,在问题2的平行四边形
中添加一个条件,使四边形
变成矩形,你添加的条件是 ,说明理由;
(4)问题4:如图④,在平行四边形
中,若
,过点O作直线
,如果
,
,试求出线段
的长度.(提示:利用勾股定理和菱形面积公式)
(1)问题1:如图①,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
(2)问题2:如图②,在平行四边形
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548c632acc0f0f2ae41f90ce24e23e59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
(3)问题3:如图③,在问题2的平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1e902581960c17ad97a5e29e2c0c56.png)
(4)问题4:如图④,在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66fae8e33cd86fa8dab72704eaafe1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/fa32bd55-f2b8-4d93-b768-a3744a7f4547.png?resizew=617)
您最近一年使用:0次
名校
10 . 如图,在矩形
中,
,
,将矩形
沿
折叠,使点C与点A重合,则折痕
的长为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb262f3529a3e84959fe594b6628c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2022/11/18/3112558847582208/3151867655962624/STEM/b07f9326224e46a586152773de9c77a1.png?resizew=158)
您最近一年使用:0次
2023-01-13更新
|
501次组卷
|
10卷引用:【万唯原创】矩形、菱形、正方形·基础必练(一)
(已下线)【万唯原创】矩形、菱形、正方形·基础必练(一)2016-2017学年江苏省扬州市江都区5校联谊八年级下学期第一次月考数学试卷江苏省扬州市江都区邵樊片2016-2017学年八年级下学期第一次月考数学试题江苏省仪征市第三中学2017-2018学年八年级下学期第一次月练数学试题【全国校级联考】安徽省芜湖市繁昌县2017-2018学年下学期八年级期末考试数学试卷山东省青岛42中2019届第一学期北师大九年级数学上册第一章特殊平行四边形单元评估检测试题【校级联考】江苏省扬州市宝应县东北教研片2018-2019学年八年级3月联考数学试题黑龙江省牡丹江市2021-2022学年八年级下学期期中数学试题辽宁省沈阳市新民市2022-2023学年九年级上学期期中数学试题辽宁省沈阳市新民市高台子学校2022-2023学年九年级上学期期中数学试题