某地下车库出口处安装了“两段式栏杆”,如图1,A是栏杆转动的支点,E是栏杆两段的连接点.当车辆经过时,栏杆
最多只能升起到如图2所示的位置,其示意图如图3所示(栏杆宽度忽略不计),其中
,
,
,
,求此时杆
到地面
的距离.(参考数据∶
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee73452ee4d5437f1399f1235b95e55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720523b1728cf75ceb44a8dc5fa2511e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69f7c8d9ffe7e69db19974af7f7f773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0494dafbea4df1d95c758ddb656afa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bccacbdde830e1329412e3e8f42ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0062f4f00732a0cf11d1ac145c218b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/88a8c518-0a90-40a8-82a6-c0f20935f4f0.png?resizew=665)
更新时间:2022-12-10 17:49:54
|
【知识点】 其他问题(解直角三角形的应用)
相似题推荐
解答题-应用题
|
较易
(0.85)
名校
【推荐1】如图,一幢楼房前有一棵竹子,楼底到竹子的距离
为2米,阵风吹过,竹子的顶端恰好到达楼顶,此时测得竹子与水平地面的夹角为
,求这棵竹子比楼房高出多少米?(精确到
米,参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a4c9b697e3df2b5469b71d3b5e47a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87796ee30e6c5d5e6b6285b32abe10c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bb199caa1c6cad0f6e0a6192a1b9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10947d591b94b407f8e029cb0efc85c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/27/55c13e50-af28-4bad-b92e-665cd0a878a7.png?resizew=130)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,某旅游景区开发一个三角形养殖池塘,记为
,修建了栈道
,已知
,
米,
,求栈道
的长.(参考数据:
,
,
,
,结果取整数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b127ade2563899a29d673c682c9f3f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f342263e5432bdb7b335a07af78057.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c894b7d6baa55c80c64e74748dad898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac980ce194582899d857b5f6edd431e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702e8d9602884d50948248734a1e1324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a0f8f5fabed2f1e761cd55660526c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/20/b090d104-d287-4d98-ac81-4428ca945f84.png?resizew=235)
您最近一年使用:0次