一艘轮船向正东方向航行,在A处看,灯塔B在船的北偏东
方向上,航行30千米后到达C处,在C处看,灯塔B在船的北偏西
方向上,则此时船与灯塔B之间的距离是______ 千米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c12aeebfa1af16f325c98a43bb08c1.png)
更新时间:2022-04-22 14:51:24
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解题方法
【推荐1】在
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【推荐2】在直角
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沿
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【推荐3】如图,某城市有一条公路从正西方向
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