如图所示,某次航展期间,一架表演机以
的速度在同一水平高度向正东方向飞行,地面上观众甲第一次观察到该表演机在北偏西60°方向,1 min后该表演机飞到北偏东75°方向,此时仰角为30°,则该表演机的飞行高度为__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91b5dff713a13b8a7f1fc546719f5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/e7a137c8-6079-4913-bc10-ce490078d0f1.png?resizew=232)
更新时间:2023-04-10 16:29:48
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【推荐1】如图,为了测量河对岸的塔高
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填空题-单空题
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【推荐2】如图,要测量底部不能到达的某铁塔
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