将等腰直角三角形
沿
折叠,得到
,连接
并延长于点
,连接
,过点
作
交
的延长线于点
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f76e37d6e6b182896ccaaa187cfe07.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/4f138877b595987abf3397aab8f9895e.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/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea853350b43e0e4dcde21d821f5fbcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f76e37d6e6b182896ccaaa187cfe07.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/eebb7919-1699-4c5d-890f-aea079fd9e55.png?resizew=171)
22-23八年级下·山东济南·期末 查看更多[4]
山东省济南市槐荫区2022-2023学年八年级下学期期末数学试题(已下线)专题1.19 特殊平行四边形(中考常考考点分类专题)(提升练)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)(已下线)第18章 平行四边形(单元测试·综合卷)-2023-2024学年八年级数学下册基础知识专项突破讲与练(人教版)(已下线)专题07 四边形(4大易错点分析+16个易错点+易错题通关)-备战2024年中考数学考试易错题(江苏专用)
更新时间:2023-07-08 20:30:55
|
相似题推荐
填空题
|
适中
(0.65)
名校
【推荐1】已知
是方程
的一组解.则
的值等于 _________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317cbd5d57dac42327f2976484eaad57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9d11c500ec497a9aaf2fa7f1566d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94406ff496032481ae1784231c67ad65.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】关于
的二元一次方程
,当
取一个确定的值时就得到一个方程,所有这些方程有一个相同解,则这个相同解是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce70eca24e983f25a198f57cb8c09d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐1】如图,AD是△ABC的角平分线,DF⊥AB,垂足为F,DE=DG,△ADG和△AED的面积分别为50和39,则△EDF的面积为_________ .
![](https://img.xkw.com/dksih/QBM/2016/3/14/1573984836222976/1573984842637312/STEM/d052f535470b4b7191c73699af8fe886.png?resizew=206)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1573984836222976/1573984842637312/STEM/d052f535470b4b7191c73699af8fe886.png?resizew=206)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】如图,线段AB的长为10,点D在AB上,△ACD是边长为3的等边三角形,过点D作与CD垂直的射线DP,过DP上一动点G(不与D重合)作矩形CDGH,记矩形CDGH的对角线交点为O,连接OB,则线段BO的最小值为___ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/70188672-5af1-48b6-8703-d58f288943cd.png?resizew=231)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】四边形具有不稳定性,对于四条边长确定的四边形,当内角度数发生变化时,其形状也会随之改变.如图,改变边长为2的正方形ABCD的内角,变为菱形
,若
,则阴影部分的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ecdb698bd9d00d684430e911e4d99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a18d3b49d8b585067b96a170770027e.png)
![](https://img.xkw.com/dksih/QBM/2022/7/6/3016746850861056/3017258184581120/STEM/b45dbc26d8b044c282b5e3658f2ae44d.png?resizew=206)
您最近一年使用:0次
填空题
|
适中
(0.65)
解题方法
【推荐2】如图,在平面直角坐标系中,点
,都在
轴正半轴上,点
,都在直线
上,
,
,都是等边三角形,且
,则点
的横坐标是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee76826aa0f752c670dec0b6e2c21f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f36925a6e79016bbbf8c9cd77c3204e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5f4f329b33dae225ce5a690dd319e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc70159631886513f329f0ac7644185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee5747ae1c372be1170242c4aecee5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1cb4ffc937e336200fd70fc089041a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/7e3bfdd2-bbe0-48d7-8937-43c23dacaecf.png?resizew=221)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】如图,已知矩形
,
,
,点E是线段
上一点,且不与A,D重合,沿
折叠使点C落在矩形某边所在直线上,则
的长是________ .
![](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/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】在平面直角坐标系中,正方形
的位置如图所示,点
的坐标为
,点
的坐标为
,延长
交
轴于点
,作正方形
;延长
交
轴于点
,作正方形
;…,按照这样的规律作正方形,则点
的纵坐标为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0a7f9ee3c6ccaea8dd3d5ad042e5f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bbfd0c7caacb8f926dbc857f913a6dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31261381628fd0276947148a3b39199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab35850dbc661ded6456b70767cc6cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05c743a1db2d45988929f702fba0101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff670ac0b0f679187f8e1d8d49d6e1a.png)
![](https://img.xkw.com/dksih/QBM/2020/5/14/2462110814175232/2462518643458048/STEM/1c75a103-22bd-4dc0-bb34-2c948286b793.png)
您最近一年使用:0次