如图,四边形ABCD是矩形,点E在BC边上,连接AE交BD于点F,则下列结论一定成立的是( ).
![](https://img.xkw.com/dksih/QBM/2022/4/17/2967029794693120/2988437574533120/STEM/2f2d55d1-f8fd-4daa-9c38-7c30bac6f510.png?resizew=199)
![](https://img.xkw.com/dksih/QBM/2022/4/17/2967029794693120/2988437574533120/STEM/2f2d55d1-f8fd-4daa-9c38-7c30bac6f510.png?resizew=199)
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更新时间:2022-05-27 14:54:43
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【知识点】 相似三角形的判定与性质综合
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【推荐1】如图,在正方形ABCD中,有一个小正方形EFGH,其中E、F、G分别在AB、BC、FD上,连接DH,如果BC=12,BF=3,则tan∠HDG的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/28/fffd3bc8-f5e6-4287-b124-c2ceef5fdd5d.png?resizew=157)
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【推荐2】如图,
是平行四边形
的边
的垂直平分线,垂足为点
,
与
的延长线交于点
,连接
、
、
,且
与
交于点
,则下列结论:①四边形
是菱形;②
;③
;④
.其中结论正确的有( )
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712437771780096/2721644691865600/STEM/5920d0b27ab94df88527cd97f208d4d3.png?resizew=211)
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