1 . 如图,在矩形
中,
,
,
的平分线
交
于点
.点
,
分别是
,
的中点,则
的长为( )
![](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/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-25更新
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605次组卷
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18卷引用:湖北省武汉市育才中学2018-2019学年八年级第二学期期中考试数学试题
湖北省武汉市育才中学2018-2019学年八年级第二学期期中考试数学试题人教版八年级下第十八章 平行四边形 18.2.1矩形内蒙古满洲里市2018-2019学年八年级下学期期末数学试题湖北省武汉市江岸区二中2018-2019学年八年级下学期期中数学试题湖北省江夏区2019-2020学年八年级下学期期末数学试题黑龙江省大庆市肇州县(五四学制)2020-2021学年八年级下学期期末考试数学试题黑龙江省牡丹江市林口县2020-2021学年八年级下学期期末数学试题山东省青岛市开发区实验学校2020-2021学年九年级上学期期末模拟数学试题福建省三明市2020-2021学年九年级上学期期末数学试题(已下线)【万唯原创】2021年山西专项集训-解答题专项-第三部分选填题组集训1+2安徽省淮南市田家庵区2020-2021学年八年级下学期期末数学试题江西省赣州市石城县2020-2021学年八年级下学期期末数学试题湖北省武汉市湖北华一寄宿学校2020-2021学年八年级下学期4月月考数学试题湖北省武汉市江夏区2022-2023学年八年级下学期期中考试数学试卷湖北省武汉六中2022-2023学年八年级下学期3月月考数学试题湖南省长沙外国语学校2023-2024学年九年级上学期开学考试数学试题18.2.1 矩形 随堂检测湖北省荆门市龙泉北校2023-2024学年八年级下学期期中数学试题
名校
2 . 如图,在
中,
,
,
,若
,
,则AC的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795ee1f96b430529934e2231b38885d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8b131c1d7d61da9ddac51dd3ca4ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38ea0df0ed6bd06b10497ea0e204fbd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/208e7802-61bd-4cce-81db-00f389063f05.png?resizew=146)
您最近一年使用:0次
解题方法
3 . 矩形ABCD中,M、N为边AD上两点,连接BM、CN,MN=BM=CN,∠BMD=120°.
(1)如图1,求证:AM=DN;
(2)如图2,点E、F分别在NC、BC上,∠FME=60°,求证:EF= BF+NE;
(3)如图3,在(2)的条件下,过E作EP∥BC交MF于P,2MN=3BF,EP=7,求CE的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/e91c5118-c189-47ac-80db-a2c99ce5177d.png?resizew=621)
(1)如图1,求证:AM=DN;
(2)如图2,点E、F分别在NC、BC上,∠FME=60°,求证:EF= BF+NE;
(3)如图3,在(2)的条件下,过E作EP∥BC交MF于P,2MN=3BF,EP=7,求CE的长.
您最近一年使用:0次
名校
4 . 疫情期间,为了保障大家的健康,各地采取了多种方式进行预防,某地利用无人机规劝居民回家.如图,一条笔直的街道
,在街道
处的正上方
处有一架无人机,该无人机在
处测得俯角为
的街道
处有人聚集,然后沿平行于街道
的方向再向前飞行60米到达
处,在
处测得俯角为
的街道
处也有人聚集,已知两处聚集点
之间的距离为120米,求无人机飞行的高度
.(参考数据:
,
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d00b74eb4c50bf861e6ff0edf137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f90eb172dbd2ff7ae6f705801c0737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce594c2e656e81fbc5eafb9894d7c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c291f612acfeac34fe33bf6813fa79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64b2212b8e55d836116ab29571b53ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52881be613aa404e553da30d8987cfad.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/20/e79997af-7c69-4d3f-a571-16b90bab9af4.png?resizew=241)
您最近一年使用:0次
2020-10-07更新
|
1118次组卷
|
14卷引用:广东省深圳市福田区南华实验学校2019-2020学年中考数学押题卷(二)
广东省深圳市福田区南华实验学校2019-2020学年中考数学押题卷(二)2022年黑龙江省绥化市海伦市第九中学中考模拟数学试题(已下线)专题15.2 锐角三角函数和解直角三角形(2)-备战2021年中考数学精选考点专项突破题集(全国通用)河南省实验中学2020-2021学年九年级下学期开学考试数学试题2021年河南省中招二模数学试题2021年内蒙古包头市东河区中考二模数学试题2021年四川省广安市岳池县九年级中考诊断(三)数学试题2021年河南省郸城县白马镇春蕾中学中考数学二模试题2021年山东省惠民县初中学业水平数学模拟试题(二)2021年四川省眉山市中考适应性数学试卷2022年广东省初中学业水平考试数学模拟题2022年四川省眉山市东坡区苏洵中学中考模拟数学试题2022年陕西省西安市高新区逸翠园学校中考十二模数学试题广东省深圳市新安中学(集团)外国语学校2021-2022学年九年级下学期月考数学试题
5 . 如图,在矩形ABCD中,AB=3,BC=5,过对角线交点O作EF⊥AC交AD于点F,交BC于点E,连接CF,△DFC的周长为( )
![](https://img.xkw.com/dksih/QBM/2020/9/28/2559270374072320/2565392617971712/STEM/5b1df4e27b28415d8ac7f67ca05b5b86.png?resizew=131)
![](https://img.xkw.com/dksih/QBM/2020/9/28/2559270374072320/2565392617971712/STEM/5b1df4e27b28415d8ac7f67ca05b5b86.png?resizew=131)
A.10 | B.9 | C.8 | D.7 |
您最近一年使用:0次
2020-10-06更新
|
156次组卷
|
2卷引用:河南省安阳市安阳县2019-2020学年八年级下学期期末数学试题
6 . 如图,在正方形
中,点
是
上任意一点,
,
,垂足分别为点
、
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6cd675e2b7172f22f663680d6bcf96c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b86d8caeb168a36f20a02ee02bb7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae7b8876cefd4f32d85ec5676e89f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c85409e4c685f7dbadae2de3cf9a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6cd675e2b7172f22f663680d6bcf96c.png)
![](https://img.xkw.com/dksih/QBM/2020/9/26/2558355782475776/2563283336200192/STEM/f4639bd7-2740-483b-82cf-c91a397b9793.png?resizew=176)
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2020-10-03更新
|
83次组卷
|
2卷引用:山西省吕梁市兴县2019-2020学年八年级下学期期末教学质量测试数学试题
7 . 如图,在矩形
中,
的平分线
与
交于点
,
的平分线
与
交于点
,当点
是
的中点时,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://img.xkw.com/dksih/QBM/2020/8/21/2532743102316544/2558318616641536/STEM/04ba313d-4a8b-49bf-aeb5-bfa8a50ea8b4.png)
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8 . 如图,正方形ABCD的边长为4㎝,ΔPBC是等边三角形,连接PD,BD,BD与PC相交于点E,则下列4个结论中,正确的结论是( )
①∠ADP=18°; ②ΔCDP的面积为4㎝
;③ΔDEP是等腰三角形;④∠BPD=120°
![](https://img.xkw.com/dksih/QBM/2020/8/14/2527567477383168/2531065824952320/STEM/cd5d5a9e9a17479c82323809b1e98659.png?resizew=107)
①∠ADP=18°; ②ΔCDP的面积为4㎝
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
![](https://img.xkw.com/dksih/QBM/2020/8/14/2527567477383168/2531065824952320/STEM/cd5d5a9e9a17479c82323809b1e98659.png?resizew=107)
A.① | B.② | C.③ | D.④ |
您最近一年使用:0次
9 . 已知
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/8/23/2534025279373312/2540868548739072/STEM/f47f8daa-7252-43fc-a4d2-c1d05f95fe80.png)
(1)如图1,求证:四边形
为矩形.
(2)如图2,
是
边的中点,
为
边上的一点,
,求证:
.
(3)如图3,在(2)的条件下,若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439fbb8974a5f907205d26b47b420bf4.png)
![](https://img.xkw.com/dksih/QBM/2020/8/23/2534025279373312/2540868548739072/STEM/f47f8daa-7252-43fc-a4d2-c1d05f95fe80.png)
(1)如图1,求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabd660ff9eed83c543bd61750388f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee86f875478d9c166073632fb9635d9b.png)
(3)如图3,在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaead91b4b6febfcdd6f995d81e550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4982bdbeb295651557a71800f567444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
您最近一年使用:0次
10 . 如图,矩形
的对角线
相交于点
,
.若四边形
的周长为
.则
的长为( )
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492398918934528/2493721866797056/STEM/5654746b-14ba-4818-9187-3d87c5bd5786.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51f1d2717f9779ed38c9f1c8b9df78e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e892cca87a17f46a5cacf0885bbc1234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99399ce175a0f5d0a7a6a82d81b6af7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492398918934528/2493721866797056/STEM/5654746b-14ba-4818-9187-3d87c5bd5786.png?resizew=170)
A.![]() | B.![]() | C.![]() | D.![]() |
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