图1是一款家用落地式取暖器,如图2是其放置在地面上时的侧面示意图,其中矩形
是取暖器的主体,等腰梯形
是底座,
,烘干架连杆
可绕边
上一点
旋转,以调节角度,已知
,
,
,
,
,
,当
时,求点
到地面的距离.(精确到0.1cm)【参考数据:
,
,
,
】
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6480f384476190883f06c0289c7519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447aa1a46e87bca4becec522b9c06f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67fa79283e769e44399dab522aeaaf71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57168279d0e7b6af77bfe37d86f36095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb8792420dc41b07f7180085c601c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e7b8479291900cfbe770d69fed7632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8329e7a1ad5e90272c84171fc01385dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4210df6ad716e00246177a7213da2c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58255ad5c5be507c6b7a961674eddb2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f440efeacc8de68a369629d25c0c432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489e2a70f3ae3f0a6972ccd5c2dd9e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460317e7c26f95b9b29cfe1a89b796d6.png)
![](https://img.xkw.com/dksih/QBM/2021/1/7/2631199898869760/2634567193346048/STEM/4fa880d6-6de1-4133-8dd6-1cd09035a9e4.png?resizew=261)
更新时间:2021-01-12 15:43:35
|
【知识点】 其他问题(解直角三角形的应用)
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】超速行驶被称为“马路第一杀手”.为了让驾驶员自觉遵守交通规则,公路检测中心在一事故多发地段安装了一个测速仪器,如图所示.已知检测点设在距离公路20m的A处,测得一辆汽车从B处行驶到C处所用时间为
.已知
,
.
(2)如果此地限速为
,那么这辆汽车是否超速?请说明理由.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ed942a66db9a9142934bd5d17f4971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7099026716ee1821dd7d9f157dc055f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
(2)如果此地限速为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7df28ef41164a1cea57de735845454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a7ff6bb8000946da9599d7d903ac9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a929d0d84e3654f03694adc8d1a326e.png)
您最近一年使用:0次
解答题-应用题
|
适中
(0.65)
【推荐2】某数学兴趣小组测量广场雕像的高度的活动报告如下:
活动报告
请计算雕像
的高度.(参考数据:
,
,
,
,
,
,结果保留整数)
活动报告
活动目的 | 测量广场雕像的高度 | |
活动过程 | 测量示意图 | |
测量工具 | 皮尺、侧倾器 | |
测量数据 | ![]() ![]() ![]() ![]() | |
计算雕像![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371e87977c220d87a1554c416ad1f0e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f0b91cf1bc8f76aa7bfa06164af46f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c109a10fdae2cab59974c144790cd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297b926276ff6b3e0e9b41debc0280e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c1f54bfb31ddde75c753f9c4dbf78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b46db8afc9f7252e27a88db1853197b2.png)
您最近一年使用:0次