如图,
为坐标原点,四边形
为长方形,边
和
分别落在
轴和
轴的正半轴上,且
,
,点
是
的中点,点
在线段
上运动,当
为腰长为5的等腰三角形时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.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/667f766fbabb1b81149179798c6737e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f845a7c69953429bd6228ac76f6848ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b996e05aecd15a1416b8475c73c02c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2022/11/18/3112210162475008/3166938032414720/STEM/dbf9a81081974f77a008a604a62b15c9.png?resizew=207)
22-23八年级上·甘肃兰州·期中 查看更多[5]
甘肃省兰州市东方中学2022-2023学年八年级上学期期中数学试题(已下线)专题18.16 勾股定理(方程思想)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)(已下线)专题17.16 勾股定理(方程思想)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)(已下线)专题1.24 三角形的证明(分类讨论问题)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(北师大版)广东省云浮市罗定市培献中学2022-2023学年八年级下学期3月月考数学试题
更新时间:2023-02-03 19:34:49
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相似题推荐
解答题-作图题
|
适中
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名校
【推荐1】如图所示,在平面直角坐标系中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/d2a9cdf4-7a1a-46b9-9c1d-73bc154a4d0d.png?resizew=300)
(1)在图中作出
关于y轴的对称图形
.写出点
,
,
的坐标.
(2)将
向下平移4个单位长度,得到
.写出点
,
,
的坐标.(不用作图)
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8796f6d3e7a0e3771f83df47e99a970d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f05b013e4b7166cbc87c5a83d6a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9241862bf81ce19ccd29ab0d7de1ee9b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/d2a9cdf4-7a1a-46b9-9c1d-73bc154a4d0d.png?resizew=300)
(1)在图中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7988923407b9abb78ef8ab45829678fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7988923407b9abb78ef8ab45829678fa.png)
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解答题-作图题
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适中
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【推荐2】如图,在平面直角坐标系xOy中,点A(1,3),点B(5,1).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/5/e3e74afc-db9e-4b43-aa9c-6b497f2b401e.png?resizew=140)
(1)只用直尺(无刻度)和圆规,求作一个点P,使点P同时满足下列两个条件:①点P到A,B两点的距离相等; ②点P到∠xOy的两边的距离相等.(要求保留作图痕迹,不必写出作法)
(2)在(1)作出点P后,点P的坐标为_________.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/5/e3e74afc-db9e-4b43-aa9c-6b497f2b401e.png?resizew=140)
(1)只用直尺(无刻度)和圆规,求作一个点P,使点P同时满足下列两个条件:①点P到A,B两点的距离相等; ②点P到∠xOy的两边的距离相等.(要求保留作图痕迹,不必写出作法)
(2)在(1)作出点P后,点P的坐标为_________.
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解答题-证明题
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适中
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【推荐3】如图①,∠BAD=90°,AB=AD,过点B作BC⊥AC于点C,过点D作DE⊥CA的延长线点E,由∠1+∠2=∠D+∠2=90°,得∠1=∠D,又∠ACB=∠AED=90°,AB=AD,得△ABC≌△DAE进而得到AC=DE,BC=AE, 我们把这个数学模型称为“K字”模型或“一线三等角”模型.
请应用上述“一线三等角”模型,解决下列问题:
(1)如图②,∠BAD=∠CAE=90°,AB=AD,AC=AE,连接BC、DE,且BC⊥AH于点H,DE与直线AH交于点G,求证:点G是DE的中点.
(2)如图③,在平面直角坐标系中,点A为平面内任意一点,点B的坐标为(4,1),若△AOB是以OB为斜边的等腰直角三角形,请直接写出点A的坐标.
请应用上述“一线三等角”模型,解决下列问题:
(1)如图②,∠BAD=∠CAE=90°,AB=AD,AC=AE,连接BC、DE,且BC⊥AH于点H,DE与直线AH交于点G,求证:点G是DE的中点.
(2)如图③,在平面直角坐标系中,点A为平面内任意一点,点B的坐标为(4,1),若△AOB是以OB为斜边的等腰直角三角形,请直接写出点A的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/40779f44-c782-4f4a-b32e-69789dd8152f.png?resizew=463)
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解答题-证明题
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【推荐1】如图,直线
与
轴交于点
,与
轴交于点
,点
的坐标是
,
为直线
上的动点,连接
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897755051982848/2917151718129664/STEM/bda461c3-c66b-4bd3-aee4-5a2c5c8aa8f2.png?resizew=126)
(1)求
,
两点的坐标.
(2)求证:
为直角三角形.
(3)当
与
面积相等时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de869ae6b6dc5b79fcae3de540b30bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/edaef66a0582e95fb5c57a405acdea9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897755051982848/2917151718129664/STEM/bda461c3-c66b-4bd3-aee4-5a2c5c8aa8f2.png?resizew=126)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e534b545e86c02abd2a0dc75d32b407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如图,在平面直角坐标系
中,直线
经过点
,与
轴交于点A,与y轴交于点B.
(1)求直线
的解析式;
(2)若点C为直线
上第一象限的点,且
,求点C的坐标;
(3)在(2)的条件下,在直线
上是否存在点Q,使得
与
相似,若存在,求出点Q的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881fe2df23c5a0fe1d1fecbe9ffa55fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/13/9b67fcf5-6b06-4395-87f3-0e448132892c.png?resizew=308)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若点C为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad427572cb77d4bb4aefed9e66be3cec.png)
(3)在(2)的条件下,在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dda3804b1fa07570002ac27483947fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb49c1fd097c5aafc0c9080449f5fc5.png)
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解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,在
中,
,点
是
边上一点,
.交
于点
,连结
,过点
作
于点
,求证:
为线段
中点.
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043bd614be04d2a77a4eb2736606d56e.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2020/4/26/2449976425496576/2451314810781696/STEM/6c2882b786944e938affe26a68841c88.png?resizew=188)
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解答题-问答题
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【推荐2】若三角形的两边长分别为7cm和10cm,则第三边的取值范围是多少?如果第三边的取值的取值是正整数,那么所取的边长有没有可能围成一个等腰三角形,此时的三角形腰长应为多少?
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