1 . 如图,在
中,
,
,点F是
边上一点,
.用直尺和圆规按要求作图(不写作法,保留作图痕迹),并回答问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/b4200f9a-fdda-43f7-87f6-f7f9b8731b38.png?resizew=136)
(1)在边
上作点D,使得点D到边
的距离相等;
(2)在射线
上作点E,使得点E到点A、点C的距离相等;
(3)若点P是射线
上一个动点,当
取最小值时,在图中作出符合要求的点P,
的最小值是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0763b031b7e6b6d87ce3554ac482d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4982bdbeb295651557a71800f567444.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/b4200f9a-fdda-43f7-87f6-f7f9b8731b38.png?resizew=136)
(1)在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354a57a4fda4f140dd869138539fa652.png)
(2)在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)若点P是射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8fcfd6201460c00de7ff7ad92d4688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8fcfd6201460c00de7ff7ad92d4688.png)
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2 . 如图所示,在
中,
的垂直平分线
交
于点D,若
,
,则
的度数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ee81929c987732fcb379802eeef7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a58f60b2a45a9f4b08348f4234b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/2ff03f64-8048-4649-9b06-cb9a2bc61229.png?resizew=177)
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3 . 如图,在
中,分别以点
和点
为圆心,大于
长为半径画弧,两弧相交于点
.作直线
,交
于点
,交
于点
,连接
.若
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/389e98c2-104e-4c55-9b26-1395c438828a.jpg?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/8d452f74791f58e8400cb8d2d6038dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f95065276a51623a797fc8a6cf3365d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/389e98c2-104e-4c55-9b26-1395c438828a.jpg?resizew=160)
A.25 | B.24 | C.21 | D.19 |
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2023九年级·全国·专题练习
4 . 如图,在△ABC中,∠ACB=90°,∠A=30°,AB的垂直平分线分别交AB和AC于点D,E,连接CD.
![](https://img.xkw.com/dksih/QBM/2023/11/23/3374244730060800/3374974828216320/STEM/060b1a9ea6c84e48a8593e669385859e.png?resizew=108)
(1)求证:△BCD是等边三角形;
(2)若AE=2,求CE的长.
![](https://img.xkw.com/dksih/QBM/2023/11/23/3374244730060800/3374974828216320/STEM/060b1a9ea6c84e48a8593e669385859e.png?resizew=108)
(1)求证:△BCD是等边三角形;
(2)若AE=2,求CE的长.
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5 . 如图,
中,
,
的垂直平分线交边
于
点,交边
于
点,若
与
的周长分别是
,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/2ec1ffa1-5450-4349-9deb-2560e3e1bd14.png?resizew=98)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6818a98204f62c1b16699d26ca0c3f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57171806f407a98dd8a796d4d2d6bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb6ba6a20d59ed6800fdd0e2ca5727c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/2ec1ffa1-5450-4349-9deb-2560e3e1bd14.png?resizew=98)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 如图,在
中,
.分别以点
为圆心,大于
的长为半径画弧,两弧相交于点D,E,作直线
分别交
于点
.以G为圆心,
长为半径画弧,交
于点H,连结
.则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d0496016710ee21e55269751bda190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf33d73483c93f24cc6a1d76ef22ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5f736b1195fef1d2d300168a795f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4ab88215eae8dda419dd17b4a4f78f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-19更新
|
201次组卷
|
4卷引用:山东省东营市东营区胜利第一初级中学2023-2024学年九年级上学期12月月考数学试题
山东省东营市东营区胜利第一初级中学2023-2024学年九年级上学期12月月考数学试题(已下线)数学(南京卷)-学易金卷:2024年中考第一次模拟考试2024年山东省济南市章丘区九年级中考二模数学试题数学(江苏南京卷)-【试题猜想】2024年中考考前最后一卷
名校
7 . 如图.在矩形
中,小聪同学利用直尺和圆规完成了如下操作:
①分别以点B和D为圆心,以大于
的长为半径作弧,两弧相交于点M和N;
②作直线
,交
于点E,交
于点F,连接
.
判断四边形
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①分别以点B和D为圆心,以大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81613520ab5a478f0b2616a9bcb79d1.png)
②作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/2ebff37acb44e6a3665aa371f73c79c1.png)
判断四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2330c01a4d2b5b20f106e3e48834d5c0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/12d865c7-49cd-4348-9cbf-af136949feef.png?resizew=118)
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8 . 如图,在矩形
中,
,对角线
与
相交于点
,
为线段
的垂直平分线,则
的长是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/0ddeacfc-6eaf-4272-8cdb-19925465216d.png?resizew=127)
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9 . 已知抛物线
交
轴于点
和点
,交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/a38d1e89-ed47-455a-a530-011f119d304b.png?resizew=242)
(1)求抛物线的解析式;
(2)如图1,点
是直线
上方抛物线上一动点,过点
作
,求
的最大值及此时点
的坐标;
(3)如图2,点
为抛物线对称轴
上一点,
为抛物线上一点,当直线
垂直平分
的边
时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a1b01c1a6d9a929a4e1d0d532ca8f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/a38d1e89-ed47-455a-a530-011f119d304b.png?resizew=242)
(1)求抛物线的解析式;
(2)如图1,点
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902f24325565a9dd95128a633a240da2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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名校
10 . 下列命题是假命题的是( )
A.直角三角形的两个锐角互余 |
B.三角形三条中线的交点是三角形的重心 |
C.线段垂直平分线上的任意一点到这条线段两个端点的距离相等 |
D.两边和一角对应相等的两个三角形全等 |
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