如图,正方形ABCD的边长是3,P、Q分别在AB、BC的延长线上,且
,连接AQ、DP交于点O,分别与边CD,BC交于点F,E,连接AE.现给出以下结论:①
;②
;③
;④当
时,
;其中正确的是( )(写出所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/2022/5/28/2989280723329024/2992543177637888/STEM/9540a1ea-08a9-480a-8ae0-8814e3115b1a.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cdc346d78b31a196d99e910b39469e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a45db9d2febc48ac747c244729e8927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7885632753de83b5ebbcd0e8d4a2c059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07432604b65455ef38849d2997e8232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d10f2db7289ff1ec65c47d9af77a9c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c27cff2e07f42536ba7e9112280390.png)
![](https://img.xkw.com/dksih/QBM/2022/5/28/2989280723329024/2992543177637888/STEM/9540a1ea-08a9-480a-8ae0-8814e3115b1a.png?resizew=170)
A.①②③ | B.①③④ | C.①②④ | D.②③④ |
2022·江苏连云港·二模 查看更多[2]
更新时间:2022-06-07 20:33:52
|
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单选题
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(0.4)
【推荐1】如图,在
中,
,以
为边,作
,满足
,点
为
上一点,连接
,
,下列结论:①
;②
;③若
,则
;④
.正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/e1dba4cd-891a-4bc7-8070-f852fd4f7bba.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
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【推荐2】如图,在平行四边形ABCD中,分别以AB、AD为边向外作等边△ABE、△ADF,延长CB交AE于点G,点G在点A、E之间,连接CE、CF、EF,则以下四个结论:①△CDF≌△EBC;②∠CDF=∠EAF;③△ECF是等边三角形;④CG⊥AE.一定正确的有( )个
A.4个 | B.3个 | C.2个 | D.1个 |
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【推荐1】如图,在正方形
中,
是等边三角形,
的延长线分别交
于点E,F,连接
与CF相交于点H,给出下列结论:①
;②
;③
;④
.其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/43ca5b6b-eac7-4450-b96a-720146b08121.png?resizew=117)
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A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐2】如图,正方形
的边长为4,点E,F分别在边
上,且
,
平分
,连接
,分别交
于点G,M,P是线段
上的一个动点,过点P作
,垂足为N,连接
,有下列四个结论:①
垂直平分
;②
的最小值为
;③
;④
.其中正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfe75598f350cded09a724493f77cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c55ee522f41c43253050e92b3c8de31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
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A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
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较难
(0.4)
名校
【推荐1】如图,在正方形
中,F为
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延长线上一点,且
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,
,M是
的中点,连接
,
,设
与
和
分别相交于点G和N,则4个结论:①
;②
;③
;④若
,则
,其中正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐2】如图,在
中,
,M是AB的中点,点D在BM上,
,
,垂足分别为E、F,连接EM,则下列结论中:①
;②
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A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐1】如图,在正方形
中,点E,F分别在
,
上(不与顶点重合),且
,在
上取一点G,连结
、
,若
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbf7fa3306cf98c5d9e3e98776c0934.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37911e56b9180699c76cc0eba7fe5c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af83aa2410d6ab5d74a984b8fd745cbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c84cb3101ff530db9afdc64f3c19bd.png)
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A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
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较难
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【推荐2】如图,已知E是正方形
中
边延长线上一点,且
,连接
与
交于点N,F是
的中点,连接
交
于点M,连接
.有如下结论:①
;②
;③
④
,其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/a91eaf9d-0ce1-4ed4-8152-b894172798e3.png?resizew=178)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0fc7eed80f5d659e4bcecae5bb9327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a568c54119b818a81c4cc5024ec4ea2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78b27507236b1d0fb4814733147452f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae49d14efd851b925841eb04b296bd0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/a91eaf9d-0ce1-4ed4-8152-b894172798e3.png?resizew=178)
A.①②③ | B.①②④ | C.②③④ | D.①②③④ |
您最近一年使用:0次