如图,池塘边有两点
、
,点
是与
方向成直角的
方向上一点,测得
长为
米,
长为
米.求
,
两点间的距离
,结果保留小数点后一位
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b60eee923b1fed455482451f8d5b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/14/ead5bb18-f1fd-4e1c-aeb7-8068fa2bed37.png?resizew=199)
更新时间:2023-06-14 17:44:19
|
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【推荐2】计算:(1)
(π-
)0-![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552cb0b21f0f83c7aabe5528e618c090.png)
(2)先化简,再求值:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552cb0b21f0f83c7aabe5528e618c090.png)
(2)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae130243f0ae76a40383680ddee1829.png)
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【推荐1】为了求出湖两岸A,B两点之间的距离,观测者小林在点C设桩,使△ABC恰好为直角三角形(∠B=90°),如图所示,通过测量得AC长为160m,BC长为128m,请求出图中A、B两点之间的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/12/232152de-95e0-400d-8b1b-ac4a628ac295.png?resizew=262)
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【推荐2】如图,池塘边有两点A,B,点C是与
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
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