如图,等腰三角形
的底边
长为6,面积是24,腰
的垂直平分线
分别交
,
边于
,
点.若点
为
边的中点,点
为线段
上一动点,则
周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/6c095fe2-4218-44aa-bea9-d392fe7e0154.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b2a5818adcc125c5ececf92c3a2cbd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/6c095fe2-4218-44aa-bea9-d392fe7e0154.png?resizew=154)
A.11 | B.12 | C.13 | D.14 |
更新时间:2024-01-16 16:00:05
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】已知
是直线
外一点,以
为一个端点作线段
,使端点
在直线
上,并且使线段
的长为
,这样的线段可以作的条数是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9eed64d225267a58cd001db67e2a3.png)
A.0或1 | B.1或2 | C.0或2 | D.非以上答案 |
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【推荐2】如图,在
中,
,
,
,
是斜边
上的动点,
是边
上的动点,则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/2022/12/24/3137990154182656/3139948286623744/STEM/029c73c0f63a489cb8e0d63b02fe627c.png?resizew=98)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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![](https://img.xkw.com/dksih/QBM/2022/12/24/3137990154182656/3139948286623744/STEM/029c73c0f63a489cb8e0d63b02fe627c.png?resizew=98)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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【推荐1】如图,∠AOB=30°,点M、N分别是射线OB、OA上的动点,点P为∠AOB内一点,且OP=4,则△PMN的周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/2020/7/8/2501571397697536/2502919860977664/STEM/c92d3b7348ee4a8f904b7d64931c0e50.png?resizew=110)
![](https://img.xkw.com/dksih/QBM/2020/7/8/2501571397697536/2502919860977664/STEM/c92d3b7348ee4a8f904b7d64931c0e50.png?resizew=110)
A.2 | B.4 | C.6 | D.8 |
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【推荐2】如图,在△ABC中,∠BAC=70°,∠C=30°,分别以点A和点C为圆心,大于
AC的长为半径画弧,两弧相交于点M,N,作直线MN交BC于点D,连接AD,则∠BAD的度数为( )
![](https://img.xkw.com/dksih/QBM/2020/7/27/2514693623152640/2515381896740864/STEM/a2d7f9b172bc4cf6832775b5f86a7d0d.png?resizew=162)
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A.40° | B.50° | C.60° | D.70° |
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【推荐1】如图,在
中,
,AD是BC边上的高,点E在AD上,且
,若
的面积为S,则
的面积是( )
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897976546181120/2914736402907136/STEM/e159881c-2f06-4e1d-b3c8-3f5437d236b1.png?resizew=121)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940099db7ffe6b3f7e70afcfba66750a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897976546181120/2914736402907136/STEM/e159881c-2f06-4e1d-b3c8-3f5437d236b1.png?resizew=121)
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【推荐2】如图,在平面直角坐标系中,
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