如图,⊙O是△ABC的外接圆,AD是⊙O的直径,若⊙O的半径为
,AC=4,则sinB的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/ffbb1b22-b6ea-4e60-91ed-ff949c650769.png?resizew=125)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-05-03 22:58:21
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图,
是
的直径,C、D、E是
上的点,若
,
,则
的度数( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207f9370c78c131304f8be7b457d268a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8171f3820a1ba29d38497a80df337072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
真题
【推荐2】如图,⊙O是△ABC的外接圆,∠ACO=45°,则∠B的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/d7c712be-7e5f-4299-9fdb-604dff68c438.png?resizew=132)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/d7c712be-7e5f-4299-9fdb-604dff68c438.png?resizew=132)
A.30° | B.35° | C.40° | D. 45° |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】一艘轮船位于灯塔
的南偏东
方向,距离灯塔
海里的
处,它沿北偏东
方向航行一段时间后,到达位于灯塔
的北偏东
方向上的
处,此时与灯塔
的距离约为( )(参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5021dda43ea360fb7b1102c1a462693a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c2835f13ee9f6a1a5fd53137d0f1a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ac320f471b22ebb0e78b94fb6df85c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49d24b64b8dd959cbb146d0602bcddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c8d86d304069fb4b15ca518ad55d25.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次