如图所示的各直角三角形中,其中边长
为
的个数是 ( )
![](https://img.xkw.com/dksih/QBM/2019/8/20/2272853769437184/2272923478441984/STEM/93017d568cc84be0a1e5e6c2504ef30c.png?resizew=72)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://img.xkw.com/dksih/QBM/2019/8/20/2272853769437184/2272923478441984/STEM/49e78f3021b049b5828343a86d318b4a.png?resizew=43)
![](https://img.xkw.com/dksih/QBM/2019/8/20/2272853769437184/2272923478441984/STEM/74610bc56d32420a85f33e7ab2e62f45.png?resizew=113)
![](https://img.xkw.com/dksih/QBM/2019/8/20/2272853769437184/2272923478441984/STEM/ad11945f89cf45e794622175aa21e843.png?resizew=85)
![](https://img.xkw.com/dksih/QBM/2019/8/20/2272853769437184/2272923478441984/STEM/93017d568cc84be0a1e5e6c2504ef30c.png?resizew=72)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2019-08-21 20:10:30
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图所示,
是等腰直角三角形,BC是斜边,点D是
内一点,连接AD、BD,将
绕点A逆时针旋转后能与
重合,如果
,那么DE的长是( )
![](https://img.xkw.com/dksih/QBM/2022/11/25/3117518270038016/3138422883524608/STEM/de07b54f6068491b9aed37da51aadfe9.png?resizew=215)
![](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/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://img.xkw.com/dksih/QBM/2022/11/25/3117518270038016/3138422883524608/STEM/de07b54f6068491b9aed37da51aadfe9.png?resizew=215)
A.2 | B.![]() | C.![]() | D.4 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知等边三角形的边长为2,则其面积是( )
A.![]() | B.![]() | C.![]() | D.4 |
您最近一年使用:0次