名校
1 . 如图,矩形
中,
,
,点E是射线
上的一个动点,把
沿
折叠,点C的对应点为点
,若点
刚好落在线段
的垂直平分线上,则线段
的长为_________ ;若点
刚好落在线段
的垂直平分线上,则线段
的长为_________ .
![](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/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/26/00253cdd-b3d5-4d20-9a28-684e74d4fac8.png?resizew=169)
您最近一年使用:0次
2 . 问题背景:已知,在
中,
,如果过某一顶点的直线可以将
分割成两个等腰三角形,求
的大小.
某数学学习小组的成员在自主探究后得出如下结果:①
,②
,③
,④
,你认为其中正确的结果有( )
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
某数学学习小组的成员在自主探究后得出如下结果:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee54b9b398ce80cd054b56173fe810f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8510040fbed014b899fa0ac0beffd20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd64e77775059440fff3169ac33c068.png)
A.4个 | B.3个 | C.2个 | D.1个 |
您最近一年使用:0次
名校
3 . 如图,在矩形
中,对角线
的垂直平分线
与
相交于点M,与
相交于点O,与
相交于点N,连接
.
是菱形;
(2)若
,求菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/b7decb1c197f855d08f2f9078b34d047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408e2d26c0c8a6594c4baba496a4651d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f6e65aef78954e9e66ccf9e57cf105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408e2d26c0c8a6594c4baba496a4651d.png)
您最近一年使用:0次
2023-11-22更新
|
159次组卷
|
17卷引用:江苏省扬州市高邮市部分学校联考2022-2023学年八年级下学期期中数学试题
江苏省扬州市高邮市部分学校联考2022-2023学年八年级下学期期中数学试题2023年云南省玉溪市峨山县中考三模数学试题甘肃省秦安县兴国中学、秦安第五中学等三校2022-2023学年八年级下学期期末数学试题宁夏回族自治区银川市第三中学治平校区2023-2024学年九年级上学期期中数学试题云南省德宏傣族景颇族自治州2020-2021学年八年级下学期期末数学试题云南省玉溪市峨山彝族自治县2020-2021学年八年级下学期期末数学试题广东省揭阳市揭西县2021-2022学年九年级上学期期末数学试题河南省开封市金明中学2002-2022学年八年级下学期期中数学试题山西省大同市阳高县2021-2022学年八年级下学期期中数学试题广东省深圳市横岗中心学校、康艺学校2022-2023学年九年级上学期期末考试数学试卷广东省深圳市福田区红岭中学2022-2023学年九年级上学期开学考数学试题江苏省苏州市吴江区2023-2024学年八年级下学期期中数学试题江苏省苏州市2023-2024学年八年级下学期期中数学试题江苏省南京市联合体2023-2024学年八年级下学期期中考试数学试题内蒙古自治区巴彦淖尔市杭锦后旗2023-2024学年八年级下学期4月期中考试数学试题内蒙古自治区巴彦淖尔市杭锦后旗杭锦后旗第六中学2023-2024学年八年级下学期期中数学试题(已下线)专题07 菱形6种常考题型归类-【好题汇编】备战2023-2024学年八年级数学下学期期末真题分类汇编(云南专用)
4 . 如图,
中,
,
于D,
平分
,且
于E,与
相交于点F,
于H交
于G.下列结论:①
;②
;③
;④
.其中正确的是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42ed2e5bd5a0f033e24008697bf4963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d260eccf8d16e9ec44722fb55df12b55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532aece6cfd67e2a97977eed978dbf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3172334aca2fa499a0e9c3ece3bf77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728c6822658a9b1972a6dc3b55c9b1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe220a8c1ff10bb18014c70d3e06bbd1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/f959c272-129f-4e15-8916-34ddef25ae7c.png?resizew=117)
您最近一年使用:0次
5 . 已知
中,
,
,E是射线
上一点(不与点B重合),线段
的垂直平分线与边
交于点D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/f8c977d9-f354-4167-83e9-55b9d444454b.png?resizew=505)
(1)点E在边
上,
①如图1,连接
,如果
平分
,求
的长;
②如图2,射线
交射线
于点F,设
,
,求y关于x的的数解析式,并写出定义域.
(2)如果
是直角三角形,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8817091d0f4b7d7ac6df560cb63c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ff8c8d239cc12ddc3a899e9f054aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/f8c977d9-f354-4167-83e9-55b9d444454b.png?resizew=505)
(1)点E在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ff8c8d239cc12ddc3a899e9f054aa9.png)
①如图1,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
②如图2,射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b49022a6f55817b5d7e3ab443b5491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c34eff4d793873d9e812d75d90fd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c398a7d5ff7ddde6fce805e559e3e80d.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
您最近一年使用:0次
6 . 如图1,在平面直角坐标系中,点A在y轴负半轴上,点P在y轴正半轴上,
,点C坐标为
,点D在
上,
,以线段
,
为邻边作矩形
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/db1f281c-1cd9-4451-9aa1-2502d123a1b4.jpg?resizew=312)
(1)连接
,
,
,设
,
①当
时,D点坐标为 ;
②当
与
相似时,求a的值;
(2)当点D与点C重合时,如图2,点E在线段
上,且
,在平面内有一动点Q,满足
,连接
,
.
①请直接写出
的最大值;
②请直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1eb7216d8edef35f4c551518b43c41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f809aef106f5da271c4800b261a628f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b510fcdadf29f8fca6b06f856dea28e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843f13e4f03a47b2cab6da3f49762831.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/db1f281c-1cd9-4451-9aa1-2502d123a1b4.jpg?resizew=312)
(1)连接
![](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/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fbeb2f1f6ee7279885520d889bfc47.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf1c00108ec0fe5eefe9281ca2b1b6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a9ec45721f7b4d1c99917ac0d970f.png)
(2)当点D与点C重合时,如图2,点E在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f383d9295c664c2d620e2526dc89ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f4eaeb9cac1676452dc8cf2f70ecc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815d1ce1ba84bac399c8b20e074cf045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
①请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0e5c967d5316ab755517e6e251cfa9.png)
②请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f5569a438e61def9be2597706238ed.png)
您最近一年使用:0次
名校
7 . 如图,在
中,
垂直平分
交
于点D,交
于点E,
垂直平分
交
于点F,交
于点G.
,求
的周长.
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db58f1912fc3fb507438cdd6351e5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cdee6c0ca0767830201ff7c2bfcb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ad5dd232145319be73bd7db5566062.png)
您最近一年使用:0次
2023-11-09更新
|
116次组卷
|
2卷引用:广东省汕头市蓝田中学2023-2024学年初二级期中数学试题
名校
8 . 如图,正方形
中,点P为D上一点,线段
的垂直平分线交
于点N,点M垂足,交两边于点E、F,连接
,则下列结论:①
;②
;③
为常数;④
,其中正确的结论个数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f1aadf4291d961038e8db73a1b4098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18403fcef48d82247ea20e2a10547026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8d2ee3f8585a93aa10b6e5f11b52db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1622fa16b3128b0ef64c9204efc158.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/27/c8527c8e-138f-4dd6-934b-a348ffb4eff6.png?resizew=160)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
名校
9 . 在等边
中,点D、E分别是边
、
上的点,且
,
、
交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/518dbf28-a3a0-4445-99ec-e9b53f85e05c.png?resizew=295)
(1)如图1,求证:
;
(2)如图2,过点B作
于点G,过点C作
交
延长线于点H,若F为
中点,求证:
;
(3)如图3,在(2)的条件下K为
延长线上一点,且
,
的面积为6,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/d42218a68301d770accaaefb96b19f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/518dbf28-a3a0-4445-99ec-e9b53f85e05c.png?resizew=295)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ffad10f85ae4bead615a15f6cc6514.png)
(2)如图2,过点B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d95b61ec1e624487162d4d739ceb48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbb4749f978df7a2674663aa9549894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da67dd217225375a8f3c9f255d0db040.png)
(3)如图3,在(2)的条件下K为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f486803fd8d03e86ce6abf370539efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777f60f3516c27258e2dda015ffe8ec0.png)
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名校
10 . 如图,
中,
,
为
延长线上一点,过点
作
,交
延长线于
,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8225b3e02f5a9f1fd5a09ada650cb78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b274209602457850a3199dc0ddac149d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f979d5406af7e951f386dbb55a9617eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbb4715e1c1db2510cf78e4219fc899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://img.xkw.com/dksih/QBM/2023/10/20/3350140027699200/3352845104177152/STEM/2bda7af92f8c46bf9cb1d6b40a6c78fe.png?resizew=186)
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