名校
1 . 某网红景区拟开辟一个平面示意图如图的五边形
观光步行道,
为景点电瓶车专用道,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/9/212a3721-03bd-4f1e-bbc2-85fe112e4bb1.png?resizew=359)
(1)求
的长;
(2)请设计一个方案,使得折线步行道
最长(即
最大).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f688423aa89510a3f9d5849854fe8ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde1c1811788d9fe89fa6bdeee73a672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c44303e5e10c3639440b37261517b3b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/9/212a3721-03bd-4f1e-bbc2-85fe112e4bb1.png?resizew=359)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)请设计一个方案,使得折线步行道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ba3f676fda6a2aaaa55c9f32874a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3c8c2d83209681290e22973787483a.png)
您最近一年使用:0次
2022-04-10更新
|
775次组卷
|
5卷引用:浙江省宁波市北仑中学2021-2022学年高一(2-10班)下学期期中数学试题