1 . 如图,
为锐角三角形,
是边
上的高,正方形
的一边
在
上,顶点H,E分别在
上.已知
,
,则这个正方形的边长是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9a415bdb7b4e1e35c18a9e53205392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c83b688911f105cffe00d6d54eea13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b03bb56c7e76954b192bd8595a0865a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/e620b5a8-4f44-4fb3-8cb1-cb088704d0f9.png?resizew=202)
您最近一年使用:0次
2022-12-11更新
|
71次组卷
|
2卷引用:贵州省铜仁市碧江区铜仁学院附属中学2022-2023学年九年级上学期期中数学试题
2 . 如图,在平行四边形ABCD中,AC、BD相交于点O,点E是OA的中点,连接BE并延长交AD于点F,已知
,则下列结论:①
;②
;③
;④
,其中一定正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/83bee961-c385-4420-8c6f-9615cc1aead5.png?resizew=249)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d568b5d555625b60b1cb375ef44eec42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d137ad180d729cf3aa2057528510b48d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ddb6225f7636b5b3881acf87fa210b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/117cb4056fcace889aa5cf47dce03f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4eadca1e53d1d3e732b3917a864fcfe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/83bee961-c385-4420-8c6f-9615cc1aead5.png?resizew=249)
A.①② | B.①③ | C.①③④ | D.②③④ |
您最近一年使用:0次
3 . 综合与探究
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/99e29af0-331f-4c90-b8d6-52ca3309fb68.png?resizew=390)
(1)如图1,在正方形
中,点
分别在边
上,且
,请直接写出线段
与
的数量关系 .
【类比探究】
(2)如图2,在矩形
中,
,
,点
分别在边
上,且
,请写出线段
与
的数量关系,并证明你的结论.
【拓展延伸】
(3)如图3,在
中,
,
为
中点,连接
,过点
作
于点
,交
于点
,若
,
,求
的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/99e29af0-331f-4c90-b8d6-52ca3309fb68.png?resizew=390)
(1)如图1,在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce9b6bb1f3e46026af863b2b269ecf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ced324a15510f9cf7518d8c277c6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e22ba3e6e1c1d6b12d9b8baa8d1f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
【类比探究】
(2)如图2,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce9b6bb1f3e46026af863b2b269ecf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ced324a15510f9cf7518d8c277c6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e22ba3e6e1c1d6b12d9b8baa8d1f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
【拓展延伸】
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c897a54f2e36bc4b52fba74b41c89d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
2022-12-11更新
|
197次组卷
|
5卷引用:2023学年贵州省玉屏侗族自治县九年级下学期5月质量监测数学模拟预测题
4 . 如图①,在
中,
,D、E分别是边
上一点,
,将
绕点C顺时针旋转,点E在
内部,直线
与
交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/c277ab9d-0c7e-4628-91e7-692b7ec90e07.png?resizew=579)
(1)如图②,探究
的值为 (用含m的式子表示);
(2)如图③,当
,求证:
;
(3)如图④,当
时,
,
.求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cca04b2a2b61d62a809776670a60c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a470c34c504109499cb12e5fae87554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/2022/12/11/c277ab9d-0c7e-4628-91e7-692b7ec90e07.png?resizew=579)
(1)如图②,探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625000a942ec1b76a1176284be6d6520.png)
(2)如图③,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a5b1266e86162f7a1daaa24ade9df4.png)
(3)如图④,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bed0657842d9dd36f48babbb151f04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78cd6667cfcf009952d533893900748c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56512504254ab7f574a717dd6830fb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
您最近一年使用:0次
5 . 如图,点
在x轴上,且
,分别过点
作y轴的平行线与反比例函数
(x>0)的图象分别交于点
,分别过点
作x轴的平行线,分别于y轴交于点
,连接
,那么图中从左到右第2022个阴影部分的面积为 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e25993147b4ace41b81de9e55b70f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee85a2a3f3ef7bd631b4d7a340fef3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e25993147b4ace41b81de9e55b70f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef854dfcbba9b7dedc1bc52f6332b011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88860c103bf8ab8e11c5160584868202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88860c103bf8ab8e11c5160584868202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f1dc9c4dbad62ef6503c9b2f2bdfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b00c1a8722f2fc2a33c4c05e23e4d444.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/e05bb4f8-01a4-4735-9396-1a69e2d6f0f1.png?resizew=199)
您最近一年使用:0次
6 . 如图,矩形
中,
,
,点E在边AD上,且
.动点P从点A出发,沿AB 运动到点B停止.过点E作
交射线BC于点F,设M是线段EF的中点,则在点P运动的整个过程中,点M运动路线的长为_____ .
![](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/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd98a2a3103541b69050e8db471e950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44085623d98e9917d9818ec9343561a6.png)
![](https://img.xkw.com/dksih/QBM/2022/11/30/3120605003202560/3127326345551872/STEM/3371cefee28543169fee8098cc211c2c.png?resizew=201)
您最近一年使用:0次
2022-12-09更新
|
91次组卷
|
6卷引用:2022年贵州省铜仁市沿河县中考二模数学试卷
7 . 如图,在正方形
中,以
为边作等边
,延长
,
分别交
于点E,F,连接
、
,
与
相交于点H,给出下列结论:①
;②
;③
;④
.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/5c32f67d-0ef5-421f-b775-805e0ea913d8.png?resizew=121)
![](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/4234cf4d8159f5df0333bcc269ffe099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.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/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432fd3eb6a03d81326d009bcca48e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a6ff9f48e93a63250372feab8ba610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf496016ba7c7d4a6ff908f0e540dd42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cbbb9a85c095ef7d63dfb3dd0e8b972.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/5c32f67d-0ef5-421f-b775-805e0ea913d8.png?resizew=121)
A.①②③④ | B.②③ | C.①②④ | D.①③④ |
您最近一年使用:0次
2022-12-09更新
|
105次组卷
|
2卷引用:贵州省铜仁市沿河土家族自治县2022-2023学年九年级上学期期中数学试题
8 . 如图,一次函数
的图像与反比例函数
的图像交于点
、
两点,与
轴、
轴分别交于
、
两点,且点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/16797503-9022-47ce-abda-e69467e89797.png?resizew=284)
(1)求一次函数和反比例函数的表达式.
(2)求
的面积.
(3)点
为反比例函数图象上的一个动点,
于
,是否存在以
、
、
为顶点的三角形与
相似,若存在,直接写出
点的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836b419464e4734e99af06c2fb104716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990eaf5dbba84f199bdc438da81fcfa6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/16797503-9022-47ce-abda-e69467e89797.png?resizew=284)
(1)求一次函数和反比例函数的表达式.
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00a815bbb597702c286eb5006cae456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2022-11-21更新
|
128次组卷
|
2卷引用:贵州省铜仁市第五中学2022-2023学年九年级上学期11月月考数学试题
9 . 如图,在
中,
是角平分线,
平分
交
于点E,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/334f2e54-c730-4f29-86a5-fab8e0f1c7e8.png?resizew=139)
(1)求证:
;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d16fab0f52c8af5abba0bf19a06ea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/334f2e54-c730-4f29-86a5-fab8e0f1c7e8.png?resizew=139)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f65b265b59b8a83e14de2d5d172763.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d579705ff858c2f0e835122a79455a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2022-11-21更新
|
64次组卷
|
4卷引用:贵州省铜仁市第五中学2022-2023学年九年级上学期11月月考数学试题
10 . 如图,在△ABC中,点D、E分别在边AB、AC上,
,且△ABC的周长为20cm,那么△ADE的周长等于___ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2daae442f6fb3d4fb52e8a044f791ba0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/2f92c186-417f-4449-b978-132f6d9c1deb.png?resizew=122)
您最近一年使用:0次
2022-11-21更新
|
49次组卷
|
2卷引用:贵州省铜仁市第五中学2022-2023学年九年级上学期11月月考数学试题