1 . 【问题背景】
(1)如图1,四边形
是平行四边形,
,则
的度数为______
;
【问题探究】
(2)如图2,
是等腰直角三角形,
,
,连接
,延长
至点E,使得
,连接
,那么
与
相等吗?请说明理由;
【问题解决】
(3)如图3,四边形
是某公园的一片空地,在
上的点D处有一凉亭,公园规划人员计划铺设
四条小路(小路宽度忽略不计),将这块空地分割成四部分,分别种植不同的鲜花供游客欣赏,已知
,
,
,
,其中四边形
区域是平行四边形,求小路
的长.
(1)如图1,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabd5ad58dd8d85ad8e30111e76e2066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
【问题探究】
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5ff57f147aa0628fdd47899b5a132.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/fa80cfd38f59e5cbbb30628d03113689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
【问题解决】
(3)如图3,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba6f4177822927b5875b92cd5f2038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a267a437fbeef92905bd182a17e3de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4579332087ee585f1cae423a6ae1862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd149c5e311b2f96efa30ad9a413e0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e8d5cb3e0130ad4dddf3a27e757fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e853b053d23277b0874566c0e9fab77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ff27eea7545bb06f9472f91290c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
名校
2 . 问题提出:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/d7d0c31f-7227-41c6-ab3c-c98356106436.png?resizew=465)
(1)如图1,在正方形
中,
,点E在边
上.将
沿
折叠,使点B落在点
处,连接
,则
的最小值为 ;
问题探究:
(2)如图2,在矩形
中,
,E为
的中点,
于点F,连接
,过点F作
的垂线交
边于点G.求证:
;
问题解决:
(3)如图3,某公园有一块形状为四边形
的空地,管理人员规划修两条互相垂直的小路
和
(小路的宽度忽略不计,两条小路交于点G),并沿
修建地下水管,为了节约成本,要使得
最小.已测出
.
,管理人员的想法能否实现,若能,请求出
的最小值,若不能,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/d7d0c31f-7227-41c6-ab3c-c98356106436.png?resizew=465)
(1)如图1,在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffb952f86442845da723fd291564484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffb952f86442845da723fd291564484.png)
问题探究:
(2)如图2,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b929269c53a44907dba8ee298a0a522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbfc35fc915ac7d4dc017e60ccdecbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b21aa016aaf823e3343286aad4d8ed.png)
问题解决:
(3)如图3,某公园有一块形状为四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77595a59f58cbf637b902b4e3bf20d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10384aed1cfcf1f031768cb3e1ad94dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
您最近一年使用:0次
3 . (1)如图①,锐角
中,
,
,
的平分线交
于点
,
,
分别是
和
上的动点,则
的最小值为______ ;
(2)如图②,在边长为
的菱形
中,
,
是
边的中点,若线段
绕点
旋转得线段
,连接
,则
长度的最小值为______ ;
(3)如图③,正方形
边长为
,点
在
边上,
.以点
为圆心,
长为半径画
,点
在
上移动,将
绕点
逆时针旋转90°至
,连接
,在点
移动过程
长度的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81e24376a13d648c2ed0dc73bc710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d3393e80ea596f9b919c0ef14e4d19.png)
(2)如图②,在边长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3f7368811340328acf5be13f499d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
(3)如图③,正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fa0a286a55692e4263a5993b01580b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6558fef858bf27e9811c2d9426fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e91df8b5d2d51900151398baf13a15d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d486055c508b9ff7f79fb8d2a464458b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d486055c508b9ff7f79fb8d2a464458b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/ad80286d-c5f1-4a54-9991-317edeedacc4.png?resizew=426)
您最近一年使用:0次
4 . 小明在一次数学活动中,进行了如下的探究活动:如图,在矩形
中,
,
,以点B为中心,顺时针旋转矩形
,得到矩形
,点A、D、C的对应点分别为G、F、E.
(1)如图①,当点G落在
边上时,求
的长;
(2)如图②,当点G落在线段
上时,
与
交于点H.
①求证:
;
②求
的长.
(3)记点K为矩形
对角线的交点,连接
,记
面积为S,求S的取值范围(直接写出结果即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b47a7fd147edfbf3f0ef21bff9fc77.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/091a79b7-f063-4510-80d6-4116bf213011.png?resizew=373)
(1)如图①,当点G落在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
(2)如图②,当点G落在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/834c8b34cb536a88451272fb3768122c.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
(3)记点K为矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c294eeff5621bce37bc16096621eea5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6cea0b2b4f0e7c29e118b272da3e8b.png)
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名校
5 . 如图,在矩形
中,
,
,点
在边
上,
,若点
、
分别为边
与
上两个动点,线段
始终满足与
垂直且垂足为
,则
的最小值为______ .
![](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/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e301133321f43abe04f796c8a6e4ec64.png)
您最近一年使用:0次
2023-10-03更新
|
306次组卷
|
8卷引用:陕西省西安交通大学附属中学2022-2023学年九年级上学期第一次月考数学试题
陕西省西安交通大学附属中学2022-2023学年九年级上学期第一次月考数学试题陕西省西安交通大学附属中学雁塔校区2022-2023学年九年级上学期第一次月考数学试题(已下线)专题23.7 相似三角形的八大经典模型-2023-2024学年九年级数学上册举一反三系列(华东师大版)(已下线)专题4.7 相似三角形的八大经典模型-2023-2024学年九年级数学上册举一反三系列(浙教版)(已下线)专题4.7 相似三角形的八大经典模型-2023-2024学年九年级数学上册举一反三系列(北师大版)(已下线)专题22.7 相似三角形的八大经典模型-2023-2024学年九年级数学上册举一反三系列(沪科版)(已下线)特色题型专练06 最值问题-四边形-备战2024年中考数学考试易错题(江苏专用)2024年四川省内江市第一中学中考三模数学试题
6 . 如图,已知正方形
的边长为a,点
是
边上一动点,连接
,将
绕点
顺时针旋转
到
,连接
,
,则当
之和取最小值时,
的周长为______ .(用含a的代数式表示)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d51c049129834e2964334275194fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13668f033d00acfc366f7e47949c4462.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/27/d5e02c90-b2bc-434c-9d32-9b53a9778b35.png?resizew=171)
您最近一年使用:0次
2023-06-22更新
|
158次组卷
|
2卷引用:湖北省孝感市孝南区2022-2023学年九年级下学期5月月考数学试题
名校
7 . 如图,在矩形
中,点
为
上一点,过点
作
于点
,连接
交
于点
,点
恰好为
的中点.
(1)求证:
;
(2)如图1,若
,求
的值;
(3)如图2,在(2)的条件下,点G、Q分别为
、
上的动点,若
,请直接写出
的最小值.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b7934aa6de6dffbed5b806989a60d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/10/1bb97e24-3aa8-4a3f-a95e-94ceba5fdd6d.png?resizew=300)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c020619f192664d728901592c9777ee5.png)
(2)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d001bdf1ac4106b4962a1a686cdfbbc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1038936f515962f6f9e4b73032937dca.png)
(3)如图2,在(2)的条件下,点G、Q分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2373cd4db6faca95f8a05920586ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd551a821451ce8853802b5adcea46d4.png)
您最近一年使用:0次
8 . 如图1,将矩形
放置于第一象限,使其顶点O位于原点,且点B,C分别位于x轴,y轴上.若
满足
.
(2)取
中点M,连接
,
与
关于
所在直线对称,连接
并延长,交x轴于点P.
①求
的长;
②如图2,点D位于线段
上,且
.点E为平面内一动点,满足
,连接
.请你求出线段
长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ca6d348c4c0f53eb995246e1cb5ae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2de78b3148620cc740e52edb9a791c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/401467318f71d611232b36c867db6905.png)
(2)取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3cf64da73d991ecb77a7aef5ca9c053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9eace64a7b30fad3f34e660eaeb1efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
②如图2,点D位于线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f75e575cbfaea176d9fc9a019c0426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04081cb23be32fd60e70f5054652531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
您最近一年使用:0次
2023-05-04更新
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346次组卷
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4卷引用:2023年浙江省杭州市西湖区中考数学第二次模拟试题
2023年浙江省杭州市西湖区中考数学第二次模拟试题福建省厦门市同安区2022-2023学年八年级下学期期中质量检测数学试题(已下线)考题猜想02 中心对称图形-平行四边形(进阶必刷36题9种题型)-2023-2024学年八年级数学下学期期中考点大串讲(苏科版)福建省莆田市涵江区莆田锦江中学2023-2024学年八年级下学期期中数学试题
名校
9 . 如图,正方形中,点P是线段
上的动点.
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a92bf37efe386e969621baf38d1eb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
①如图1,求证:.
②如图2,连接交
于点O,交
于点F,试探究线段
、
、
之间用等号连接的数量关系,并说明理由;
(2)如图3,已知M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bb906128c31953a48f421869d24ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2023-04-27更新
|
632次组卷
|
2卷引用:广东省佛山市南海区狮山镇罗村第二初级中学2023-2024学年九年级上学期第一次月考数学试题
名校
10 . 平行四边形
中,点E在边
上,连
,点F在线段
上,连
,连
.
,点E为
中点,
.若
,求
的长度;
(2)如图2,已知
,将射线
沿
翻折交
于H,过点C作
交
于点G.若
,求证:
;
(3)如图3,已知
,若
,直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb91cb9a5a14169845d700fbd95890ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963b642016122e89cd23cf7b06b6856a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
(2)如图2,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc0b3b9279de39c2c27f50dc6500eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a4b46c42eabe12093c6e193b52ef1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27e47690ed332c573186992b6d25654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6925b5356dc8db0f204a09a3352d35f.png)
(3)如图3,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181e38066f00256158cc9e8fafb2263e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd41e2eb04d2b467c0d276ab2a04c55.png)
您最近一年使用:0次
2023-04-13更新
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1247次组卷
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12卷引用:2023年广东省深圳市南山区中考二模数学试卷
2023年广东省深圳市南山区中考二模数学试卷(已下线)2023年广东省深圳市南山区中考二模数学试卷变式题16-22题2023年广东省广州市越秀区名德实验学校中考模拟数学试题2023年广东省广州市增城区英华学校中考一模数学试题2023年广东省广州市番禺区天星学校中考二模数学试题(已下线)2023年广州等市二模(几何综合)(已下线)2023年广州等市一模(几何综合)(已下线)2023年深圳东莞二模(几何综合)四川省成都市成都教科院附属龙泉学校2023-2024学年九年级上学期10月月考数学试题重庆市第十八中学2023-2024学年 九年级下学期第一次月考数学试题(已下线)中考难点03 几何证明压轴题(2题型+满分技巧+限时检测)-2024年中考数学【热点·重点·难点】专练(重庆专用)重庆市育才中学校2023-2024学年八年级下学期第二次自主作业数学试题