1 . 如图,已知
是
的外心,
分别是
、
的中点,连接
、
交
于点
,若
,
,
,则
的面积为( )
![](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/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15febfda66e733f14aa7115ed4343a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dad4a877f874e75bf6aa7f41c8146e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e82a0052299f414cff1e7afcc5aa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc95af9238cf516b1f60fd4c51b409a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-14更新
|
144次组卷
|
4卷引用:江苏省宿迁市沭阳如东实验学校2023-2024学年九年级上学期第一次阶段检测数学试题
江苏省宿迁市沭阳如东实验学校2023-2024学年九年级上学期第一次阶段检测数学试题(已下线)专题06 三角形(全等、相似)(2大易错点分析+19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)(已下线)专题09 圆2(1大易错点分析 26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)2024年河北省石家庄市十八县部分学校中考模拟数学试题
名校
2 . 如图,在
的正方形方格中,每个小正方形的边长为1,顶点都在网格线交点处的三角形叫作格点三角形,如图建立平面直角坐标系,已知
三个顶点的坐标分别是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6c6b834294b38c9ef30ce24e3ec6ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/de90a40a-6c82-4010-9dfd-6cb4e04ccb3a.png?resizew=225)
(1)经过A,B,C三点的圆弧所在圆的圆心M的坐标为 ;
(2)在图中,以点O为位似中心画
,使它与
的位似比为
;
(3)若有一个格点三角形与
相似,且它与
有一条公共边和一个公共角
,请直接写出满足上述条件的三角形未知顶点的坐标 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23f3b42cd6069f0e461035e76459ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6c6b834294b38c9ef30ce24e3ec6ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/de90a40a-6c82-4010-9dfd-6cb4e04ccb3a.png?resizew=225)
(1)经过A,B,C三点的圆弧所在圆的圆心M的坐标为 ;
(2)在图中,以点O为位似中心画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7ef20e925954f796cc9af744e4a38f.png)
(3)若有一个格点三角形与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
您最近一年使用:0次
3 . 如图所示,在
中,
,
,
的垂直平分线交
点
,垂足为点
,连接
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/b2aff0e9-34de-4189-9f6d-5893777e5d18.png?resizew=116)
![](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/ee54b9b398ce80cd054b56173fe810f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd9d0d73549e2944578f3513631ce5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/b2aff0e9-34de-4189-9f6d-5893777e5d18.png?resizew=116)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 如图,在等腰
中,
,
是
的高,
,
分别是
上一动点,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8817091d0f4b7d7ac6df560cb63c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82d579a717399137b8c6d475d33cd4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d3393e80ea596f9b919c0ef14e4d19.png)
您最近一年使用:0次
5 . 平面直角坐标系中,
,
,线段
的垂直平分线交坐标轴于C,则C的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14168792b74b97b8bc51531604ba36b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
6 . 如图,在
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/8b9b8872-e16f-4837-b496-3f20af538f10.jpg?resizew=169)
(1)通过观察尺规作图痕迹,可以发现直线
是线段
的______;
(2)请用无刻度的直尺和圆规作出
的平分线(保留作图痕迹,不写作法);
(3)若(2)中所作的角平分线与边
交于点
,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e4e2717c5c61f8461c945717a6b4b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/8b9b8872-e16f-4837-b496-3f20af538f10.jpg?resizew=169)
(1)通过观察尺规作图痕迹,可以发现直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)请用无刻度的直尺和圆规作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721c75fcd58d3d54260aad0f82e09e37.png)
(3)若(2)中所作的角平分线与边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c36ff76f9f1ee12db562cde7a58b8c3.png)
您最近一年使用:0次
7 . 如图,在
中,
,分别以点A,B为圆心,以大于
的长为半径作弧,两弧分别交于点M,N(点M在
上方),作直线
交
边于点D;在
和
上分别截取
、
,使
,分别以点E,F为圆心,以大于
的长为半径作弧,两弧在
内交于点P,作射线
,若射线
恰好经过点D,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1fd8b62412e37e56ed2ecffb228c543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ff8c8d239cc12ddc3a899e9f054aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4eccda4edcee29a5f15609e85106df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c390d67e0d91ae3ad99cf6a9d173f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d092504d3c33c48be43f23b788efd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f10681704c4fccfd37664eaf34391dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af018556f0b484ed38519f2edc791c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af018556f0b484ed38519f2edc791c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e16965b76e9302c5d63d177cf36000.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-14更新
|
115次组卷
|
2卷引用:贵州省铜仁市沿河土家族自治县初中第一集团2023-2024学年八年级上学期第二次统考数学试题
8 . 如图,等腰三角形
的底边
长为4,面积是16,腰
的垂直平分线
分别交
,
边于
,
点,若点
为
边的中点,点
为线段
上一动点,则
周长的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/312f9350-a17f-4fa0-b424-7608789c221e.png?resizew=178)
您最近一年使用:0次
2024-03-14更新
|
42次组卷
|
2卷引用:云南省云南师大附中润城学校2023-2024学年八年级上学期10月份月考数学试题
9 . 如图,在
中,点
为
边上一点,给出如下关系:①
平分
;②
于
;③
为
中点.
小明说:若①②同时成立,可证明
;小华说:若②③同时成立,也可证明
.则正确的说法是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/b475e9b4-9360-4d8d-b430-49fe10a776cd.png?resizew=119)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
小明说:若①②同时成立,可证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/b475e9b4-9360-4d8d-b430-49fe10a776cd.png?resizew=119)
A.两人的说法都正确 | B.两人的说法都错误 |
C.小明正确,小华错误 | D.小明错误,小华正确 |
您最近一年使用:0次
10 . 如图,等腰
的底边
长为6,面积是36,腰
的垂直平分线
分别交
,
边于E,F点.若点D为
边的中点,点M为线段E上一动点,则
周长的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/00eae5d1-5e3b-423c-b5ff-3f6ebeecb62a.png?resizew=173)
您最近一年使用:0次