如图,在等边△ABC中,
,N为AB上一点,且
,
的平分线交BC于点D,M是AD上的动点,连结BM,MN,则
的最小值是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5365ce89048c2c720dd9a0cd13b59d1.png)
![](https://img.xkw.com/dksih/QBM/2020/7/14/2505798736453632/2505902599192576/STEM/d4f1214c6cca4c7fa219257707bab3c8.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c65312db84bbe37e0e1b400bf78c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e98288acdd662de9a3dae1fcf0368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5365ce89048c2c720dd9a0cd13b59d1.png)
![](https://img.xkw.com/dksih/QBM/2020/7/14/2505798736453632/2505902599192576/STEM/d4f1214c6cca4c7fa219257707bab3c8.png?resizew=139)
A.8 | B.10 | C.![]() | D.![]() |
2020·天津河西·模拟预测 查看更多[1]
更新时间:2020-07-14 20:54:48
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相似题推荐
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名校
【推荐1】如图,在
中,
,
,
的面积是16,
的垂直平分线
分别交
,
边于E,F点,若点D为
边的中点,点M为线段
上一动点,则
周长的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
A.6 | B.8 | C.10 | D.12 |
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【推荐2】如图,正方形
的边长为
,
的平分线交
于点E,若点P,Q分别是
和
上的动点.则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/25f9ad0d-2bb6-4ffc-b28f-b3a2f0533084.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484155b48555fe7e39be4d34c0639763.png)
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A.![]() | B.4 | C.![]() | D.![]() |
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【推荐1】在平面直角坐标系中,点A、B在x轴上,点C在y轴上,
C是等边三角形,P是
边上动点,连接
,以
为边在
的右侧作等边三角形
,连接
,
的面积为
,
的中点为M,当点P在
边上运动时,线段
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
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A.![]() | B.![]() | C.![]() | D.4 |
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【推荐2】如图,△ABC是等边三角形,D是BC边的中点,点E在AC的延长线上,且∠CDE=30°.若AD=
,则DE的长( )
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2019/3/8/2155918747164672/null/STEM/21a504fdc5ef46eb9be9bfaf02422b02.png?resizew=140)
A.![]() | B.2![]() | C.![]() | D.2![]() |
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【推荐1】如图,正方形
的边长为5,点
,
分别在
,
上,
,连接
、
,
与
相交于点
,连接
,取
的中点
,连接
,若
,则
的长为( )
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【推荐2】如图,已知
是
的直径,
,
,
是弧
的中点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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A.4 | B.3 | C.2.5 | D.2 |
您最近一年使用:0次
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【推荐1】如图,在
中,
,
,D,E分别是
,
的中点,作
于点F,连接
,
.若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce7f6d278f2ef7a193b7eed7be6b3c5.png)
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【推荐2】如图,已知⊙O的半径为
是直径,
是弦,
是
的中点,连接
分别与
交于点
,若点
是
的中点,则
的长是( )
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A.7 | B.6 | C.4 | D.3 |
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