如图,
,
,
,垂足为 A,
,垂足为D.下面四个结论:①
;②
;③
;④
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e03566282ef39ad17821036f228174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee4efe3a7e48a8ea0059228947b8f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3bdf428d285b505d44459debf69eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01ed555d6a42cd7fb3aaf0728ee38b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc77f151beeaf5b96c6d431af87e9a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46451050e063528b5e5797a294530b0a.png)
A.4个 | B.3个 | C.2个 | D.1个 |
更新时间:2024-04-22 15:55:54
|
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【推荐1】如图,在梯形
中,
,则下列结论正确的个数为( )
①
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8103ed535d2e777965b7e739b43b8cfa.png)
③
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c072caaf30e20eab441e03ebdb21fbca.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/b89298dc-ef17-407d-8e93-13a41d861817.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20f945f9bee6737c2a7aaffe05cf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8103ed535d2e777965b7e739b43b8cfa.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7367b20b6757d6511ca16c125f468a96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c072caaf30e20eab441e03ebdb21fbca.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/b89298dc-ef17-407d-8e93-13a41d861817.png?resizew=152)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图,将△ABC沿直线AB向右平移后到达△BDE的位置,连接CD、CE,若△ACD的面积为8,则△BCE的面积为( )
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670731953659904/2671490997501952/STEM/9e757e1bba33498abbb5f80d4675ccf2.png?resizew=123)
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A.5 | B.6 | C.10 | D.4 |
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【推荐1】如图,E是平行四边形ABCD的对角线BD上的点,连接AE并延长交BC于点F,且
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的值是( )
![](https://img.xkw.com/dksih/QBM/2020/2/28/2408997314830336/2409599543697408/STEM/0d2c649146224c999c6c70c60445a63c.png?resizew=150)
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A.![]() | B.![]() | C.![]() | D.![]() |
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真题
名校
【推荐2】如图,将平行四边形
沿对角线
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,
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的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e58289e352e8bffb676d41d6b23cf2ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87084a129e3c602f0258d2b8ce98f918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】下列各命题中是真命题的是( )
A.两个锐角分别相等的两个直角三角形全等 |
B.两条直角边分别相等的两个直角三角形全等 |
C.平行四边形相邻的两个角都相等 |
D.一组对边平行,另一组对边相等的四边形是平行四边形 |
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【推荐2】下列说法中,正确的是( )
A.对角线互相垂直的四边形是平行四边形 |
B.菱形的对角线互相垂直且平分 |
C.菱形的对角线相等且互相平分 |
D.对角线互相平分的四边形是矩形 |
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