1 . 如图,在
中,AB=AC=1cm,∠A=36°,BD是∠ABC的角平分线,则底边BC的长是_____ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/799d8651-ed27-4869-aa90-cb31cd5fc2a3.png?resizew=128)
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2 . 如图,已知梯形ABCO的底边AO在x轴上,BC∥AO,AB⊥AO,过点C的双曲线
交OB于点D,且OD:DB=1:2,若△OBC的面积等于6,则k的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/f741e1e0-17c4-496e-85fe-2b7df015887a.png?resizew=173)
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名校
3 . 如图,直线
与
轴、
轴分别相交于
,
两点,与双曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
相交于点
,
轴于点
,且
,点
的坐标为
.
(2)若点
为双曲线上点
右侧的一点,且
轴于
,当以点
,
,
为顶点的三角形与
相似时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4022404158a19da85fe55773ebd331a.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab03556c333ab0b55fe86c937b2a5763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e7c6d54b0d73fa8d3af7f2a4d7f049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2899e607479d8d1c47d954ae9ebb7144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc8350b12974ffc8d06fce36d158f02.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99befb6bca95d89bf40a8c5f638f42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2021-03-11更新
|
917次组卷
|
26卷引用:2021年贵州省遵义市汇川区初中生毕业认定测试数学试题(三模)
2021年贵州省遵义市汇川区初中生毕业认定测试数学试题(三模)福建省长汀县龙宇中学2020-2021学年九年级下学期第一次月考数学试题河北省石家庄市平山县2020-2021学年九年级上学期期末考试数学试题福建省龙岩市第八中学2020-2021学年九年级下学期第一次月考数学试题福建省龙岩市初级中学北城分校2020-2021学年九年级下学期第一次月考数学试题山西省太原市第三十七中学校2021-2022学年九年级上学期月考数学试题2018届人教版九年级数学下册(通用版)检测卷:期末检测卷山东省枣庄市第十九中学2018届九年级下学期第一次月考数学试题甘肃省定西市2018届九年级中考一模数学试题2018人教版九年级数学下册期末检测卷广东省汕头市潮阳区金灶镇2019届九年级中考一模数学试题山东省枣庄市第十五中学2019-2020学年九年级上学期第二次月考数学试题2019年宁夏固原市西吉县中考数学二模试题2019年湖北省恩施州利川市中考数学一模试题(已下线)专题冲刺小卷11 函数综合问题-2020年《三步冲刺中考·数学》之最新模考分类冲刺小卷(河南专用)辽宁省大石桥市周家镇中学2019-2020学年九年级5月月考数学试题广东省茂名市2019-2020学年九年级下学期期末数学试题(已下线)【万唯原创】2016年份河南省中考数学研究专项-题型第一部分题型7(已下线)【万唯原创】2018年河南省中考数学试题研究-河南试卷-河南重难题型研究解答题重难点突破题型5新疆生产建设兵团第六师芳草湖农场中学2019-2020学年九年级下学期期末数学试题2020年宁夏吴忠市盐池县九年级中考二模数学试题宁夏银川市永宁县2019-2020学年九年级第二次联考数学试题郑州市一中2019年中考三模数学试卷(A4)广东省广州市骏景中学2023-2024学年九年级下学期月考数学试题2024年宁夏石嘴山实验中学中考二模数学试题(已下线)2024年四川省南充市中考数学真题变式题17-21题
4 . 如图,正方形
的边长是4,
,线段
的两端点在
上滑动,当
为多长时,
与以D,M,N为顶点的三角形相似?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e542ad9bda7cdd5353cf78b66b43ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cfc40029017f975a4e6abcdf9a396f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://img.xkw.com/dksih/QBM/2021/3/1/2668550309191680/2671829013880833/STEM/ab03d211af8e404e848c95245fdc7b79.png?resizew=123)
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2021-03-06更新
|
463次组卷
|
3卷引用:贵州省铜仁市玉屏侗族自治县2020-2021学年九年级上学期期末数学试题
贵州省铜仁市玉屏侗族自治县2020-2021学年九年级上学期期末数学试题贵州省六盘水市盘州市2021-2022学年九年级上学期期末数学试题(已下线)第13讲 相似三角形的判定(4大考点)-2022-2023学年九年级数学考试满分全攻略(人教版)
5 . 如图,在平行四边形
中,点E在边
上,
,连接
交
于点F,则
的面积与
的面积之比为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/f789ef80-0d36-4b9d-9bb3-96b1c822bceb.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e9e2955a88c70f4fbc7633b26ab6d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6901cd2f1408f0fade304f39e4ba597c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/f789ef80-0d36-4b9d-9bb3-96b1c822bceb.png?resizew=130)
A.4:1 | B.16:5 | C.16:25 | D.5:4 |
您最近一年使用:0次
6 . 如图,已知
是
斜边上的中线,过
作
的平行线,过点
作
垂线,两线相交于点
.
(1)求证:
;
(2)若
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82221ad0e83eef5be52f9cbcd4c584d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250bd7f9f4346379735c66cb0407a0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/2021/1/25/2645945360949248/2670476010905600/STEM/3324acea-5469-4512-99d2-04f0c36c1e7e.png)
您最近一年使用:0次
7 . 如图,
分别是
的边
上的点,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b338a09a0571f8d13155b5b8d865ce2.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3355e2fa0ac6c675f02ee36c3ced4f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1912c4e0fe478ba402a887fdc759d3f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e20bfa4e5e7c6565b9c95284f4a7203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b338a09a0571f8d13155b5b8d865ce2.png)
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2021-03-04更新
|
106次组卷
|
3卷引用:贵州省毕节市织金县2020-2021学年九年级上学期期末数学试题
名校
8 . 如图,
中,
是
的延长线上一点,
与
交于点
,
.若
的面积为1,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e750ae795826d3e6388ca6c5c2bf9a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
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2021-03-03更新
|
95次组卷
|
3卷引用:贵州省铜仁市万山区2020-2021学年九年级上学期期末数学试题
9 . 如图,在正方形
中,
是等边三角形,
、
的延长线分别交
于点
、
,连接
、
,
与
相交于点
,给出下列结论:①
;②
;③
;④
.其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fbc3a1f1e848cf1349b9327be8607d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0658ec95d62d40f7c83adee90c86bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f454b60d253c0e011eed209a19ef20ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094521db515d0f977cf703f54ea32d43.png)
A.①②③ | B.①③④ | C.②③④ | D.①②④ |
您最近一年使用:0次
2021-03-03更新
|
178次组卷
|
2卷引用:贵州省铜仁市万山区2020-2021学年九年级上学期期末数学试题
10 . 如图,在
中,
,
与
,
的交点分别为
,
.若
,则
等于( )
![](https://img.xkw.com/dksih/QBM/2021/1/27/2650161485234176/2669787131396096/STEM/7b2d1686-d423-4aff-8b21-75d2913beed5.png?resizew=217)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0137c721b8d4ea6dca8b7d9761134726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a285c3a2431592df56fe108489603a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1361c0f97b8e1252d8bf911f76c9d9a9.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2650161485234176/2669787131396096/STEM/7b2d1686-d423-4aff-8b21-75d2913beed5.png?resizew=217)
A.![]() | B.![]() | C.![]() | D.![]() |
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