如图,甲从A点出发向北偏东70°方向走到点B,乙从点A出发向南偏西15°方向走到点C,则∠BAC的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/16/c02877bf-1225-42a4-82b5-799d32ab89e0.png?resizew=233)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/16/c02877bf-1225-42a4-82b5-799d32ab89e0.png?resizew=233)
A.105° | B.115° | C.125° | D.135° |
更新时间:2020-01-06 08:00:14
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【知识点】 与方向角有关的计算题解读
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【推荐1】如图,已知点
在点
的北偏西
方向,点
在点
的北偏东
方向,那么
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/ee002e1f-7642-4074-aedc-e1d76b3f8923.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/ee002e1f-7642-4074-aedc-e1d76b3f8923.png?resizew=144)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】一艘轮船由海平面上A地出发向南偏西30°的方向行驶50海里到达B地,再由B地向北偏西30°的方向行驶50海里到达C地,则A、C两地相距( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/52c0f990-c1f4-4b44-80ee-7cec912a0d7c.png?resizew=132)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/52c0f990-c1f4-4b44-80ee-7cec912a0d7c.png?resizew=132)
A.100海里 | B.50![]() | C.50海里 | D.25海里 |
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