如图,在
ABC中,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbff84327e964f912a54032e76ccc9.png)
,
是
中点,
垂直平分
,交
于点
,交
于点
,在
上确定一点
,使
最小,则这个最小值为( )
![](https://img.xkw.com/dksih/QBM/2021/8/13/2785126316957696/2785380617854976/STEM/69b3751f269b405bb82806e6b63bfbed.png?resizew=132)
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![](https://img.xkw.com/dksih/QBM/2021/8/13/2785126316957696/2785380617854976/STEM/69b3751f269b405bb82806e6b63bfbed.png?resizew=132)
A.10 | B.11 | C.12 | D.13 |
2021八年级上·全国·专题练习 查看更多[3]
(已下线)课时13.4 最短路径问题-2021-2022学年八年级数学上册链接教材精准变式练(人教版)(已下线)专题13.17 课题学习——最短路径问题(巩固篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(人教版)黑龙江省齐齐哈尔市克东县第二中学2022-2023学年八年级上学期11月月考数学试卷
更新时间:2021-08-16 13:28:57
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【推荐1】如图,在矩形ABCD中,AB=8,AD=6,动点P满足
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【推荐2】如图,锐角∠AOB=x,M,N分别是边OA,OB上的定点,P,Q分别是边OB,OA上的动点,记∠OPM=α,∠QNO=β,当MP+PQ+QN最小时,则关于α,β,x的数量关系正确的是( )
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名校
【推荐1】如图,在
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【推荐2】如图,在△ABC中,BC>AB>AC.甲、乙两人想在BC上取一点P,使得∠APC=2∠ABC,其作法如下:
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(乙)以B为圆心,AB长为半径画弧,交BC于P点,则P即为所求.
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/f5a82ed9-6fc1-49ae-af8a-34d73b32dd62.jpg?resizew=164)
(甲)作AB的中垂线,交BC于P点,则P即为所求;
(乙)以B为圆心,AB长为半径画弧,交BC于P点,则P即为所求.
对于两人的作法,下列判断何者正确?( )
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