如图,正方形ABCD中,直线l经过点A,分别过点D、B作l的垂线,垂足分别是点E、F,连接DF,若AF=2,则△DAF的面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/49ab1605-8299-40a7-81b0-a653e0dae1ff.png?resizew=177)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/49ab1605-8299-40a7-81b0-a653e0dae1ff.png?resizew=177)
A.2 | B.![]() | C.3 | D.4 |
20-21八年级下·四川资阳·期末 查看更多[2]
四川省资阳市2020-2021学年八年级下学期期末数学试题(已下线)专题1.60 《三角形的初步知识》全章复习与巩固(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(浙教版)
更新时间:2022-07-11 00:03:35
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【推荐1】如图,在
中,
,
,作
平分
交边
于D,过A作
于E,延长
交边
于点F,连接
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的度数为( )
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,在
中,
,
,
平分
交
于点D,
交
于点E,下列四个结论:①
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的垂直平分线上;③图中共有5个等腰三角形;④
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A.4个 | B.3个 | C.2个 | D.1个 |
您最近一年使用:0次
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【推荐1】如图,
,
于点
,
于点
,
,
交于点
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;③点
在
的平分线上.正确的是( )
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A.① | B.② | C.①② | D.①②③ |
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名校
【推荐2】如图,在正方形
中,
是
延长线上一点,在
上取一点
,使点
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的对称点
落在
上,连接
交
于点
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交
于点
,连接
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;②
;③
;④若
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