如图,在矩形
中,
,点E,F分别在
上,且
,连接
,
,连接
交
于点M,交
于点N,则下列结论中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e4a162f12d12a082b8d8fdd1aeab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e545f31f7cc57a31843f5adfd02941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee498e34b21dea01638f5c6adccb3561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7cb98ebad4ce465a7c02fc1c3b5e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d1c709cbc7baefbc4f22b57991a991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
2024·安徽芜湖·一模 查看更多[5]
2024年安徽省芜湖市鸠江区部分学校中考一模数学试题安徽省淮北五校联考2023-2024学年九年级下学期月考数学试题(已下线)专题05 四边形(6大易错点分析)-备战2024年中考数学考试易错题(安徽专用)2024年贵州省部分学校大联考中考一模数学模拟试题(已下线)热点05 三角形(10大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(广东专用)
更新时间:2024-03-22 15:33:08
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【推荐1】如图,在△ABC中,∠C=90°,CA=CB,AD平分∠CAB交BC于D,DE⊥AB于点E,且AB=6,则△DEB的周长为( )
![](https://img.xkw.com/dksih/QBM/2016/2/29/1573977017065472/1573977023373312/STEM/6e31ef2621284f87bee2634773a25465.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/2016/2/29/1573977017065472/1573977023373312/STEM/6e31ef2621284f87bee2634773a25465.png?resizew=130)
A.4 | B.6 | C.8 | D.10 |
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【推荐2】如图,正方形
中,
,点
在边
上,且
,将
沿
对折至
,延长
交边
于点
,连接
、
.下列结论:①
;②
;③
;④
//
.其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/29/10ea92cb-2a37-4889-af0a-fe99e7bfc733.png?resizew=176)
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【推荐1】等边△ABC如图放置,A(1,1),B(3,1),等边三角形的中心是点D,若将点D绕点A旋转90°后得到点D′,则D′的坐标( )
![](https://img.xkw.com/dksih/QBM/2018/10/25/2061149248569344/2067104212312064/STEM/c9a34afd6f2b4bd1ba8a5dd01f90a61f.png?resizew=142)
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A.(1+![]() | B.(1﹣![]() ![]() |
C.(1+![]() ![]() | D.(2+![]() ![]() |
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【推荐2】《九章算术》中有一题:“今有二人同所立,甲行率七,乙行率三,乙东行,甲南行十而斜东北与乙会.问甲、乙行各几何?”大意是说:已知甲、乙二人同时从同一地点出发,甲的速度为7,乙的速度为3.乙一直向东走,甲先向南走10,后又向东北方向走了一段后与乙相遇.那么相遇时,甲、乙各走了多少?设甲、乙二人从出发到相遇的时间为x,根据题意,可列方程正确的是( )
A.![]() | B.![]() |
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【推荐1】如图,把两个边长不等的正方形放置在周长为36的矩形
内,两个正方形中均有一组邻边分别落在矩形
的一组邻边上.如果两个正方形的周长和为45,那么这两个正方形的重叠部分(图中阴影部分所示)的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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A.![]() | B.5 | C.9 | D.10 |
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【推荐2】如图,矩形
为小型台球桌面,
,球在点
处,
,小花瞄准
上
点将球打出去,经过反弹后
,球刚好到点
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的长是( )
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【推荐1】如图,点
在线段
上,在BD的同侧作等腰直角
和等腰直角
,
与
、
分别交于点
、
,
与
相交于点
,连接
,下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/96f267cb-1b23-4f28-a0b1-ca89e6c00b6d.png?resizew=174)
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【推荐2】如图,点D、E分别在
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