如图,
是正方形
的对角线
上一点,
于点
,
于点
,连接
,
.给出下列结论:①
;②
;③
;④
.其中结论正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/ac2ef99db257cc1acb08e3a5e0006d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544204617f1eb4e26a082a72d27d0bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7187f42d8d3b94de9ad65615ad1c2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f1aadf4291d961038e8db73a1b4098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d18e0b20763e76ee99054cf47b2460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461b5b33f1bee2cee89b70a53bed6f04.png)
A.1 | B.2 | C.3 | D.4 |
更新时间:2023-09-14 19:45:20
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】如图,正方形
中,
,点
在边
上,且
;将
沿
对折至
,延长
交边
于点
,连结
、
,下列结论中,正确的个数为( )
①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45dd28533cdd66c5a4a407e7d1c94d96.png)
![](https://img.xkw.com/dksih/QBM/2020/5/3/2454635351810048/2454822796910592/STEM/11de2822-64e7-4030-a9cc-22541eb98226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795e740cb57615d48c36b416d5b93a9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f460edcced5597615113c0fdc95b1dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4877b02291158ccb46b6d55da23259d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d1e5fc8599f6888a65ad8c6400ba6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851b6466fc810946d7f12926e35000d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba601e0853ef7ff5a2def1fd3ff87bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45dd28533cdd66c5a4a407e7d1c94d96.png)
![](https://img.xkw.com/dksih/QBM/2020/5/3/2454635351810048/2454822796910592/STEM/11de2822-64e7-4030-a9cc-22541eb98226.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】如图,在
中,
平分
,
且
.以下判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7672022057a656c5638e6e384dc630cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc1a8e1de618493faf62d1e75638a49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/28/d102d218-853f-4bac-b6f8-aeb7cf02746c.png?resizew=240)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,正方形
外取一点E,连接
.过点A作
的垂线交
于点P,若
,
.下列结论:①
;②点B到直线
的距离为
;③
;④
,其中正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e459ae7f530f7990718fd9c5fbc7d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17d3ece9b7096aa5db32383448a072f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aa6fd52f3933cbded9ce8c880b4a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd94ce5e3c9daeb9129d945a45a953e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ecee2530431d7b1be2b86223162d47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735a10502b6e23831dff8c6ec363733d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/13638dde-a367-4cdb-8001-07887542bf9c.png?resizew=149)
A.①③④ | B.①②③ | C.②③④ | D.①②③④ |
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【推荐2】如图,在
中,D是
延长线上一点,
.在
上有一点E,
.若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fe17063ba9c92bdbe80f40187ad48d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
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(0.65)
【推荐1】如图,在矩形ABCD中,AB=2,AD=4,AC的垂直平分线EF交AD于点E、交BC于点F,则EF的长为( )
![](https://img.xkw.com/dksih/QBM/2018/10/2/2044825198198784/2045453135413249/STEM/6aba8e43cc0b4c2da16fac6753cd739f.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2018/10/2/2044825198198784/2045453135413249/STEM/6aba8e43cc0b4c2da16fac6753cd739f.png?resizew=88)
A.4 | B.2![]() | C.![]() | D.2![]() |
您最近一年使用:0次
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【推荐2】如图,在四边形
中,
,
.按以下步骤作图:①以点 B为圆心,
的长为半径作弧,交
于点G;②分别以点 G,C 为圆心,大于
的长为半径作弧,两弧交于点 P,作射线
.若点 D 在射线
上,则线段
的长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a7cefa14a90337bbbb6e378d8a892d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dceb5cc71fc50f20649f6b9535fd914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08efe19eb4df42ea84cf4e978399ebd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a09dc3ba27b8c170f29024feeeba3e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
A.![]() | B.![]() | C.8 | D.![]() |
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【推荐1】如图,边长为4的正方形
内接于
,E是劣弧
上的动点(不与点A,B重合),F是劣弧
上一点,连接
,
,分别与
,
交于点G,H,且
,则在点E运动过程中,下列关系会发生变化的是( )
甲:
与
之间的数量关系;乙:
的长度;
丙:图中阴影部分的面积和
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/95f01906-992f-40a9-8a98-336a92b5c6f9.png?resizew=146)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319ff9f648fedec284a11a9761cb6183.png)
甲:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f986c181183d8e7e45655e6c5b5d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129baba55117e8d5523746888024273a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
丙:图中阴影部分的面积和
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/95f01906-992f-40a9-8a98-336a92b5c6f9.png?resizew=146)
A.只有甲 | B.只有甲和乙 | C.只有乙 | D.只有乙和丙 |
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【推荐2】如图,已知正方形ABCD的边长为12,BE=EC,将正方形边CD沿DE折叠到DF,延长EF交AB于G,连接DG,现在有如下4个结论:①△ADG≌△FDG;②GB=2AG;③△GDE∽△BEF;④S△BEF
=
.在以上4个结论中,正确的有( )
![](https://img.xkw.com/dksih/QBM/2015/7/7/1573864482029568/1573864487280640/STEM/ab1565dd-d499-40e9-8e9f-88dbca561a49.png?resizew=138)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1573864482029568/1573864487280640/STEM/34474ced03284bb684eb870b0dc7a4a4.png?resizew=9)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b1079a0333d5598c214bd2f556b0a7.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1573864482029568/1573864487280640/STEM/ab1565dd-d499-40e9-8e9f-88dbca561a49.png?resizew=138)
A.1 | B.2 | C.3 | D.4 |
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