如图,在矩形ABCD中,点E,F分别是边AB,BC的中点,连接EC,FD,点H,G分别是EC,FD的中点,连接GH,若AB=6,BC=8,则GH的长度为( )
![](https://img.xkw.com/dksih/QBM/2022/6/24/3008303473147904/3029493718261760/STEM/f112c9227b7b4578b22ac1edfc0dd9da.png?resizew=155)
![](https://img.xkw.com/dksih/QBM/2022/6/24/3008303473147904/3029493718261760/STEM/f112c9227b7b4578b22ac1edfc0dd9da.png?resizew=155)
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更新时间:2022-07-24 15:03:39
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【推荐1】如图所示,在平行四边形ABCD中,点E为BC中点,连接DE,过点A作
于点F,交DE于点G,连接BG并延长交CD于点H,恰好使
.已知
,阴影部分△BEG的面积为3,则AG的长度是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/6c80131d-8ac7-41f9-94c7-4b430dcc87b4.png?resizew=188)
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【推荐2】如图所示,在
中,
是
的平分线,
于点
,
.给出下列结论:①
是等腰三角形;②
是等腰三角形;③
;④
.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/2020/7/6/2499889313931264/2500165780332544/STEM/62adf69d-566d-40ea-b933-9aecf08cc82c.png?resizew=238)
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A.②③④ | B.①②③④ | C.②③ | D.③ |
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【推荐1】如图,
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斜边
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【推荐2】如图,在
中,
,
,
,P是
边上一动点,连接
,把线段
绕点A逆时针旋转
到线段
,连接
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【推荐1】如图,AB是⊙O的弦,AB=10
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【推荐2】如图,在正方形
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【推荐1】如图,在矩形
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【推荐2】如图,正方形
的边长为
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的右侧作矩形
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在边
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,连接
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是
的中点,则线段
的长为( )
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