1 . 题目:“如图,在正方形
中,点
在
边上(不与点
,
重合),点
在
边上(不与点
,
重合),将线段
绕点
顺时针旋转,使点
的对应点
落在正方形
的边上,将线段
绕点
顺时针旋转,使点
的对应点
落在正方形
的边上,
依次操作下去.若经过多次操作可得到首尾顺次相接的正
边形,求
的值.”对于其答案,甲答:
,乙答:
或
,则正确的是 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87448e09eaa816e50ae92d111d5ded6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cdcc58d8679574ac955c1ae5b01e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6862dd3c43647ce7d7935a7d205b54d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50b36a56f772e8d14c8fbc32f098300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
A.只有甲答的对 | B.只有乙答的对 |
C.甲、乙答案合在一起才完整 | D.甲、乙答案合在一起也不完整 |
您最近一年使用:0次
2 . 我国清代数学家李锐借助三个正方形用出入相补的方法证明了勾股定理.如图,直角三角形的三边a,b,c满足
,分别以a、b、c为边作三个正方形:正方形
、正方形
、正方形
,把它们拼成如图所示形状,使E、F、G三点在一条直线上,若
,四边形
与
面积之和为7,则正方形
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e125231382a9240eaa8f25d8fcd6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364e4c3b68ae4e5b4a2d6fa891a682cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71387afa3e79463a64ad1cb75d57672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d94f78f7d47a379f98eda41e24bab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8641de131e86041bb4cee948569cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4abe8235672eba0777f4457fd0ced8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2ebc72f4907da72118c5386a832fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d94f78f7d47a379f98eda41e24bab0.png)
A.49 | B.28 | C.21 | D.14 |
您最近一年使用:0次
2024·河北·二模
3 . 如图,正方形
的边长为5,点
,
分别在
,
上,
,连接
、
,
与
相交于点
,连接
,取
的中点
,连接
,若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c55ee522f41c43253050e92b3c8de31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39addc1173a458af87ed5c5e3f06466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35ca3368b42e5d49d812534be03b3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
A.![]() | B.![]() | C.2 | D.4 |
您最近一年使用:0次
4 . 如图,四边形
是正方形, 点
分别在
的延长线上, 且
,设
. 给出下面三个结论:①
;②
;③
上述结论中,所有正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4515e1dff9a852b3294dc1d6488a5748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc884f6134f8ea73d0e8d89e7316255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf538440bd45e5881f2b22994560ba7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc723c817e12dca265735df8fa70ddee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f96458ed1205aceb8999906dcbed06f.png)
A.①② | B.②③ | C.①③ | D.①②③ |
您最近一年使用:0次
2024-05-12更新
|
548次组卷
|
2卷引用:2024年河北省沧州市中考一模数学试题(B卷)
名校
5 . 如图,在正方形
中,点E,F分别是
边上的点,
,且
,过点E作
于点H,过点F作
于点G,
交于点D,连接
设
,
,
,给出下面三个结论:
①
;②
;③
.
上述结论中,所有正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d251bf48e719fabb5bbce4b0f737475a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d97f03faed3152db2fd3bd1919944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570e1883b1b9c2e28aad2e3861de44bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179f83b6490ae006ae5a536bd8b63db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d1614b23fa6632b914f9a42fdfb8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb418228a26e6c82572fd7ebcae7e8f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5e1327a620ce3bc3ce0571cfef0dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce629f210d757b89a726d2ae851f9ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da39a22f4f3203ef5a2f8d72cb928297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cd0d212c71ed7de5f892cc7c9ff72b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df337f2eff7f81da8cf7d52ba803d006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1567725db3bdf321ce00ac512190b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5927d5cc31b7230f33bc3df7fc3454.png)
上述结论中,所有正确结论的序号是( )
A.①② | B.①③ | C.②③ | D.①②③ |
您最近一年使用:0次
2024-05-06更新
|
378次组卷
|
3卷引用:2024年河北省九地市中考三模数学试题
6 . 如图将正方形B的一个顶点与正方形A的对角线交点重合放置,已知正方形A的边长为4,正方形B的边长为3,则阴影部分面积是( )
A.3 | B.![]() | C.4 | D.8 |
您最近一年使用:0次
7 . 如图,正方形
的边长为
,
是对角线
上的一点,
于点
,
于点
,连接
,
.给出下列结论:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
的最小值为
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
有可能是等腰三角形.其中正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/ac2ef99db257cc1acb08e3a5e0006d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6350abc2bc9e38dca81a52a856c0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f4782e3cdc6a5b6c93f62179e8c6d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 如图,在边长为
的正方形
中,点
是对角线
的三等分点.点
在正方形
的边上(可以与正方形的顶点重合)、则能满足“
”的点
的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce9b6bb1f3e46026af863b2b269ecf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](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/c3ef6fddbc5410639e786fd127aa516a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.2个 | B.4个 | C.6个 | D.8个 |
您最近一年使用:0次
9 . 如图,正方形
边长为1,延长
至点E,使得
,
平分
交
于点F,连接
,则下列结论:①
;②
平分
;③
;④
.其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75929268210da5976bc37d080da030dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e59617707e98c3441445392333b491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c36ff76f9f1ee12db562cde7a58b8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8689d619c2508c9000531fc1b8f1f21c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860c88564f29946faacd347af5682e98.png)
A.①②③ | B.①②④ | C.①③④ | D.②③④ |
您最近一年使用:0次
2024-04-17更新
|
75次组卷
|
2卷引用:河北省沧州市献县2023-2024学年八年级下学期月考数学试题
名校
10 . 如图,在正方形
中,E、F分别是
的中点,
交
于点G,连接
.下列结论:①
;②
;③
;④
.其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3355e2fa0ac6c675f02ee36c3ced4f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf857e03d4320c999d328fd657c2d412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783b84ed8d927b77491092f7d2ee2989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032a2b9d7d169436cdb842be77d2990b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4412d53360eca5a00f1d9925625ce86.png)
A.①② | B.①③ | C.①②④ | D.①②③ |
您最近一年使用:0次
2024-04-13更新
|
354次组卷
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15卷引用: 河北省廊坊市第四中学2022-2023学年八年级下学期期中数学试卷
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