1 . 如图,在四边形ABCD中,∠BAD=∠ADC=90°,且AD∥BC;AC的长为16,则DO的长为___ .
![](https://img.xkw.com/dksih/QBM/2021/3/15/2678536499044352/2682757207441408/STEM/5ead0a16-3844-4578-b048-93e65c4d8ba4.png)
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2 . 如图1,在矩形
中,对角线
与
相交于点
,动点
从点
出发,在线段
上匀速运动,到达点
时停止.设点
运动的路程为
,线段
的长为
,如果
与
的关系图象如图2所示,则矩形
的周长是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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19-20八年级下·浙江·开学考试
3 . 如图,在矩形
中,
平分
交
于点E,
交
于点F,若
,
,则
等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1a1fd2fc33e89f357cef772ff6cd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1496042c1d721cffd25053e997a9a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc5df62e8ac9c74a46462519b95479a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670842046504960/2671363337617408/STEM/1e224294cbac4bc388e5d8257ed55a00.png?resizew=190)
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4 . 如图,矩形ABCD的对角线AC,BD交于点O,AB=3,BC=4,过点O作OE⊥AC,交AD于点E,过点E作EF⊥BD,垂足为F,则OE+EF的值为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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9卷引用:山东省济南市历城区2020-2021学年九年级上学期期中数学试题
山东省济南市历城区2020-2021学年九年级上学期期中数学试题(已下线)考点17 矩形、菱形、正方形(考点专练)-备战2021年中考数学考点微专题(已下线)第03讲 矩形(3个知识点+5类热点题型讲练+习题巩固)-【帮课堂】2023-2024学年八年级数学下册同步学与练(人教版)(已下线)第01讲 矩形的性质和判定(知识解读+达标检测)-2023-2024学年八年级数学下册《知识解读·题型专练》(浙教版)(已下线)第14讲 特殊的平行四边形全章复习与测试-【暑假自学课】2022年新九年级数学暑假精品课(北师大版)山东省泰安市泰山区2020-2021学年八年级下学期期中数学试题山东省泰安市东平县实验中学2022-2023学年八年级下学期3月月考数学试题内蒙古自治区包头市东河区2023-2024学年九年级上学期期末数学试题山东省泰安市新泰市宫里镇初级中学(五四制)2023-2024学年八年级下学期第一次作业检查数学试题
5 . 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)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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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(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
6 . 在平行四边形ABCD中,过点D作DE⊥AB于点E,点F在边CD上,DF=BE,连接AF,BF.
(1)求证:四边形BFDE是矩形;
(2)若CF=9,BF=12,DF=15,求证:AF平分∠DAB.
(1)求证:四边形BFDE是矩形;
(2)若CF=9,BF=12,DF=15,求证:AF平分∠DAB.
![](https://img.xkw.com/dksih/QBM/2021/1/13/2635342399840256/2639396583661568/STEM/ccae5d45b58249bb99b6eb992acba4d9.png?resizew=191)
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7 . 如图,在矩形ABCD中,
,
,点P是矩形ABCD内的一个动点,且
,连接PC,则线段PC的最小值________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/fe3cf29a-6cd4-4be5-9551-f07e170a5c78.png?resizew=152)
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8 . 如图所示,长方形
中,
,
,
,点
为
上的任意一点(可与
、
重合),分别过
、
、
作射线
的垂线,垂足分别为
、
、
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/869fc39ce536fa812e3439d1478495ee.png)
![](https://img.xkw.com/dksih/QBM/2020/12/29/2624400847093760/2633840833003520/STEM/1a47db30-4297-45b8-915b-125ad7aa9b17.png?resizew=234)
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2021-01-11更新
|
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3卷引用:湖北省武汉市江夏区湖北华一寄宿学校2020-2021学年八年级上学期12月月考数学试题
湖北省武汉市江夏区湖北华一寄宿学校2020-2021学年八年级上学期12月月考数学试题(已下线)专题18.14 《平行四边形》之几何模型-将军饮马(专项练习)-2020-2021学年八年级数学下册基础知识专项讲练(人教版)江苏省连云港市灌云县2020-2021学年八年级下学期期中数学试题
2020·浙江杭州·模拟预测
9 . 如图,
中,
,
,
,点A在y轴上,
轴,且B,C在反比例函数
的图象上,则k的值为( )
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629563098595328/2629656368439296/STEM/eeb4472c-3f22-4515-9a78-e7566a9c5470.png?resizew=193)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a355958abf7dc0f2eb949584cb87907b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c619d84005d26a464fadb5cf9a2bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de68db2706156f1ee17e24f843b40cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629563098595328/2629656368439296/STEM/eeb4472c-3f22-4515-9a78-e7566a9c5470.png?resizew=193)
A.3 | B.![]() | C.![]() | D.6 |
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19-20八年级下·浙江杭州·阶段练习
解题方法
10 . 如图,在平面直角坐标系中,一次函数
的图象与反比例函数
的图象相交于点
,点A的坐标为
,点B的横坐标为6.
(1)求反比例函数与一次函数的解析式;
(2)连结
,求
的面积;
(3)若点C在x轴上,D点在坐标平面内,是否存在点C,使得以
为顶点的四边形是矩形,若存在,求出点D的坐标;求出点的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed06ccefffc165f9c77250cd28301d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc4622a5f65ffbece28e09206b0cb8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
(1)求反比例函数与一次函数的解析式;
(2)连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a887617b1126a28868fbc1629b8c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(3)若点C在x轴上,D点在坐标平面内,是否存在点C,使得以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4496fe22b40bc63581998e6b7ef6783.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/a944f3d0-5269-494e-bb97-19e872a28c08.png?resizew=462)
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