1 . 某中学举行升旗仪式,在坡度为15°的看台
点和看台的坡脚
点,分别测得旗杆顶部的仰角分别为30°和60°,量的看台坡脚
点到
点在水平线上的射影
点的距离为
,则旗杆的高
的长是__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6293f10977e09f6bf2be1c49fb2c874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2016/12/12/1579119382462464/1579119382896640/STEM/e953aba0-2b29-4da3-85c7-14fdf73b1b0c.png)
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2016-12-13更新
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6卷引用:安徽省名校联盟2021-2022学年高三上学期开学考试理科数学试题