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1 . 某地居民的居住区域大致呈如图所示的五边形,近似由一个正方形和两个等腰直角三角形组成.若
,
,现准备建一个电视转播台,理想方案是转播台距五边形各顶点距离的平方和最小,图中
是
的五等分点,则转播台应建在( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/fa172b3f-8339-4a15-942c-30c8e216ca2e.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660c8a4fa701dc65a3af75aceb60695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f134ddc44ac8d972d1b8b59232e3868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4addb17d99993f4beb82d63d203bb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/fa172b3f-8339-4a15-942c-30c8e216ca2e.png?resizew=172)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-12-02更新
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3卷引用:人教A版(2019)2023-2024学年高二上学期期末模拟数学试题