如图所示,O为△ABC的外心,若∠BAC=70°,则∠OBC=____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/2bdbaea5-e245-43e6-b1dc-c7779721d0bb.png?resizew=124)
更新时间:2022-07-17 18:34:28
|
相似题推荐
填空题
|
较易
(0.85)
【推荐2】如果等腰三角形的底角为50°,那么它的顶角为__________ .
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐1】如图,⊙O上B、D两点位于弦AC的两侧,
,若∠D=56°,则∠AOB=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ed57969142985c6e5f3e02ecb38cec.png)
![](https://img.xkw.com/dksih/QBM/2019/6/13/2224870493069312/2226411765932032/STEM/ef8097540f2e4e4dab02551b2ca63c4f.png?resizew=113)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐2】如图所示,以
的顶点
为圆心,
为半径作圆,交
,
于
,
,延长
交
于
,连结
、
,当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22001dd2d32e6f2cee4c8379e85ec45e.png)
__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4d00b86b2f067b902baf6e52f0faab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22001dd2d32e6f2cee4c8379e85ec45e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://img.xkw.com/dksih/QBM/2021/5/28/2730392185700352/2731997636222976/STEM/2ed26c86-c2fb-427c-9e29-71a32a947bf2.png)
您最近一年使用:0次