如图,要把河中的水引到水池A中,应在河岸B处(
)开始挖渠才能使水渠的长度最短,这样做依据的几何学原理是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
A.两点之间线段最短 | B.两条直线的距离 |
C.两点确定一条直线 | D.垂线段最短 |
更新时间:2024-04-28 05:28:19
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【推荐1】如图,在三角形
中,
,
,点 P是边
上的动点,则
的长不可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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A.4.8 | B.5 | C.6 | D.7 |
您最近一年使用:0次
单选题
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容易
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【推荐2】如图,把水渠中的水引到水池
,先过
点向渠岸
画垂线,垂足为
,再沿垂线
开沟才能使沟最短,其依据是( )
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584986677125120/2590109663838208/STEM/2df44cfeb65c434a93ffe433eaa36eac.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d65b8e49d5703abb6d5a7ce3718175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045af681aade76c69c5bfc578b1f572a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a574d1aafc6fcb6305504852a5eca09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e25a07ec6bd2ea7ce701fdd21d2f194.png)
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584986677125120/2590109663838208/STEM/2df44cfeb65c434a93ffe433eaa36eac.png?resizew=137)
A.垂线段最短 | B.过一点确定一条直线与已知直线垂直 |
C.垂线最短 | D.以上说法都不对 |
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