在学校操场旁边的台阶上有一个“翔”的雕塑,雕塑后面是很长的一段台阶CD,意寓拥抱梦想,展翅翱翔,如图,雕塑的上边缘点A距地面平台高度为AB的长,点B距台阶底端C的距离
米,台阶底端C与顶端D的连线可视作坡度为1:0.75的斜坡,且
米.若A,B,C,D四点在同一平面内,且在点D看石雕上边缘点A的俯角为
,则雕塑“翔”的高度AB约为( )米.(参考数据:
,
,
)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/81074044-275c-4db1-86a5-cf1f9158de28.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2aea5dc133fdded83d5453ee447deff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb94bd9eb80fb9f5f02f518bb8f2211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b517a427e371f90ced3cccce3abb26af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589dfa98a450567b33b0f96b4c16d00e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055ed3df1b9f8e8267f73e291e7e3356.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/81074044-275c-4db1-86a5-cf1f9158de28.png?resizew=163)
A.2.21 | B.2.20 | C.2.25 | D.2.31 |
更新时间:2020-12-28 16:54:01
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】已知
是以坐标原点O为圆心,5为半径的圆,点M的坐标为
,则点M与
的位置关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e43d246256ad67cfffb042ed0bd591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
A.M在![]() | B.M在![]() | C.M在![]() | D.M在![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
真题
【推荐2】如图,在
中,以点
为圆心,适当长为半径作弧,交
于点
,交
于点
,分别以点
,
为圆心,大于
长为半径作弧,两弧在
的内部交于点
,作射线
交
于点
.若
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c513dca3b8c31bc8d0ed4301e94cc1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d092504d3c33c48be43f23b788efd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7ea03277f8408fabe5b327cc34838f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd0c00f62c22e90e7d542a2f8dd83d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc9f0779b0ba2f9f97caf35c166ad24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
A.![]() | B.1 | C.![]() | D.2 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】如图所示,河坝横断面迎水坡
的坡比为
,坝高
,则坡面
的长度是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/daa82f23-a4e9-480b-a7b6-d5e50f1ea83b.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e0f7e08e014294c38b972cc1a8944e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/daa82f23-a4e9-480b-a7b6-d5e50f1ea83b.png?resizew=178)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,滑雪场有一坡角为
的滑雪道,滑雪道AC长为150米,则滑雪道的坡顶到坡底的竖直高度AB的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48cf21017ebe712348fbe500113dbc59.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次