如图,已知
,
平分
,
平分
,
与
相交于点
.则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3702b5620dbee356a8e560c78d223ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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更新时间:2024-04-18 16:21:45
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【推荐1】悬臂在生活中应用广泛,图1是一款利用悬臂原理设计的手机支架,图2为其平面示意图,若底座
于点O,
,则
,
,
的数量关系是( )
![](https://img.xkw.com/dksih/QBM/2021/6/1/2733798518358016/2734363466326016/STEM/861a6613-4754-46c9-ba52-ac456e12105e.png)
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【推荐2】如图,在
中,
,
,
,点
为
边的中点,点
为线段
上的一点,连接
,将
沿
翻折得到
,连接
、
,当
时,则
的长是( )
![](https://img.xkw.com/dksih/QBM/2021/1/8/2631582047895552/2634384795025408/STEM/b451785d-7806-406e-9dfa-f6d83bb9e271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf3bb6fc265edb63e78dab2a6dd3bed.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d2094777538ba6a70ea65d5061ef7.png)
![](https://img.xkw.com/dksih/QBM/2021/1/8/2631582047895552/2634384795025408/STEM/b451785d-7806-406e-9dfa-f6d83bb9e271.png)
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【推荐1】四边形ABCD的对角线AC、BD相交于点O.下列条件:①
;②AD=BC;③
;④OA=OC中,任意选择其中的2个条件组成一组,一定能判定四边形ABCD是平行四边形的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e853b053d23277b0874566c0e9fab77.png)
A.3组 | B.4组 | C.5组 | D.6组 |
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【推荐2】如图,在四边形
中,
,
,
,点
为对角线
的中点,射线
交边
于点
,且
,则
为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35333abd7f02d663d15251bc5cbbf921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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【推荐1】已知:如图,在正方形ABCD外取一点E,连接AE,BE,DE.过点A作AE的垂线交DE于点P.若AE=AP=1,PB=
,下列结论:
①△APD≌△AEB;
②点B到直线AE的距离为
;
③EB⊥ED;
④S△APD+S△APB=
.
其中正确结论的序号是( )
![](https://img.xkw.com/dksih/QBM/2022/8/11/3042015911329792/3042092639723520/STEM/e7b60b2d488e4efe9160bec17b825aaa.png?resizew=140)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
①△APD≌△AEB;
②点B到直线AE的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
③EB⊥ED;
④S△APD+S△APB=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e6005f250b5a32ffad88b347eac02a.png)
其中正确结论的序号是( )
![](https://img.xkw.com/dksih/QBM/2022/8/11/3042015911329792/3042092639723520/STEM/e7b60b2d488e4efe9160bec17b825aaa.png?resizew=140)
A.①③④ | B.①②③ | C.②③④ | D.①②④ |
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【推荐2】等腰三角形一腰上的高与底边所成的角等于( )
A.顶角 | B.顶角的2倍 | C.顶角的一半 | D.底角的一半 |
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