如图,在
中,
,
,D是
上的一点,将
沿
翻折得到
,边
交
于点F,
,则下列结论中,不正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/a74c5814-5a8e-4066-af4a-35a569a9f29b.png?resizew=187)
![](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/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c771a4feb150ad9cff8d70431c97eb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/a74c5814-5a8e-4066-af4a-35a569a9f29b.png?resizew=187)
A.图中共有4个等腰三角形 | B.![]() |
C.![]() | D.![]() ![]() |
更新时间:2024-01-18 22:12:41
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】如图,在
中,
,点D在
上,且
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/a8a0da26-1291-43d2-9829-d28075170d31.png?resizew=84)
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d7705b2af781c8085f709dbdaffc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/a8a0da26-1291-43d2-9829-d28075170d31.png?resizew=84)
A.36° | B.45° | C.54° | D.72° |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图,在
中,
,点D是
外一点,连接
,且
交
于点O,在
上取一点E,使得
,若
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2022/12/9/3126935821983744/3128690548916224/STEM/110fb93f35d24efbb8bb30b4c2e63b87.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad037d6d1bddf8930944fd93b5a551b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c0582b9641c94b519cc51901cbe2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/7cfc14b76a5be92def58584aa0b17627.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e096a9f3fd3f8be00f036e2cadb4d832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://img.xkw.com/dksih/QBM/2022/12/9/3126935821983744/3128690548916224/STEM/110fb93f35d24efbb8bb30b4c2e63b87.png?resizew=155)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图,
是
的直径,点
,
在
上,
交
于点
.若
,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2020/11/25/2600428866174976/2604317154009088/STEM/0d0a5ae0-9744-46fe-8275-7c1cecf67064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30b02c7213f57d3c6c3d65e0650a926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f62d6dc1a687fe06224326f3dde339c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c30c86a9f6d0c1f9d316218aa8a7180c.png)
![](https://img.xkw.com/dksih/QBM/2020/11/25/2600428866174976/2604317154009088/STEM/0d0a5ae0-9744-46fe-8275-7c1cecf67064.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】下列条件中,不能断定△ABC为直角三角形的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】如图,将含有30°角的直角三角尺ABC绕直角顶点A逆时针旋转到△ADE的位置,使点B的对应点D落在BC边上,连接EB,EC,则下列结论:①∠DAC=∠DCA;②ED为AC的垂直平分线;③EB平分∠AED;④△ABD为等边三角形.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/e740cd51-874d-4344-bd15-ae47b1efee68.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/e740cd51-874d-4344-bd15-ae47b1efee68.png?resizew=127)
A.①②③ | B.①②④ | C.②③④ | D.①②③④ |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】下列说法中,错误的是( )
A.有两个内角分别是70°和40°的三角形是等腰三角形 |
B.有两个内角相等的三角形是等边三角形 |
C.一个外角平分线平行于一边的三角形是等腰三角形 |
D.等边三角形一定是等腰三角形 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图①,将某四边形纸片ABCD的AB沿BC方向折过去(其中AB<BC),使得点A落在BC上,展开后出现折线BD,如图②.将点B折向D,使得B,D两点重叠,如图③,展开后出现折线CE,如图④.根据图④,下列关系正确的是( )
![](https://img.xkw.com/dksih/QBM/2019/5/31/2215357987864576/2216967417831424/STEM/e28bd98ff6834d29a3a8f92c17f72ff7.png?resizew=393)
![](https://img.xkw.com/dksih/QBM/2019/5/31/2215357987864576/2216967417831424/STEM/e28bd98ff6834d29a3a8f92c17f72ff7.png?resizew=393)
A.AD∥BC | B.AB∥CD | C.∠ADB=∠BDC | D.∠ADB>∠BDC |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图是一张直角三角形的纸片,两直角边
,
.现将
折叠,使点B与点A重合,折痕为
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/21/fe8dd13b-184d-4243-96d4-0981a85c691b.png?resizew=188)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/21/fe8dd13b-184d-4243-96d4-0981a85c691b.png?resizew=188)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次