已知,
,
,则∠F 的度数是( )
![](https://img.xkw.com/dksih/QBM/2019/10/29/2322647300661248/2325132300591104/STEM/8c1514cd881141509a43a3ea708df549.png?resizew=242)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed25b9fd9b1d67394bc929be38334eae.png)
![](https://img.xkw.com/dksih/QBM/2019/10/29/2322647300661248/2325132300591104/STEM/8c1514cd881141509a43a3ea708df549.png?resizew=242)
A.30° | B.40° | C.70° | D.80° |
更新时间:2019-11-02 11:16:41
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,将两块相同的三角板(含30°角)按图中所示位置摆放,若BE交CF于D,AC交BE于M,AB交CF于N,则下列结论中错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/fef558f1-9afa-477b-bfd3-698d799d6faf.png?resizew=177)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/fef558f1-9afa-477b-bfd3-698d799d6faf.png?resizew=177)
A.∠EAC=∠FAB | B.∠EAF=∠EDF | C.△ACN≌△ABM | D.AM=AN |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】如图,四边形
中,
,
平分
,
,
,
,则四边形
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/a0ab436a-1d4b-4fe9-bcfe-a3a7a0b5a324.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bbe4cdd2c154bd9a8073b0d4cecb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d22b3a51cc762d2ed7e6416f9509915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/a0ab436a-1d4b-4fe9-bcfe-a3a7a0b5a324.png?resizew=176)
A.30 | B.40 | C.50 | D.60 |
您最近一年使用:0次