1 . 如图1,正方形
的对角线
,
相交于
,
为
边上一动点(不与
,
重合),
交
于
.
;
(2)求证:
;
(3)如图2,若正方形
边长为
,
为
中点,点
在运动过程中,
长的最小值为___________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/dc2eaf2acb7e954cc0c4aacdc1f29f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4dd5d34fe36d4a2663d775d82726950.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04fff76d8bf3bed4ca82ffdecace1de.png)
(3)如图2,若正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
您最近一年使用:0次
2 . 如图,在平面直角坐标系中,
为坐标原点,
为
轴上一点,菱形
的边长为
,
,点
是
边上一动点(不与点
,
重合),点
在
边上,且
,下列结论:
①
;②
的大小随点
的运动而变化;③直线
的解析式为
;④
的最小值为
.
其中正确的有___________ .(填写序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9040cff7e9e20dd2817ad9888237d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe004d14fc61695c5b0257adc4b1a3d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a4332070212c7fd68f36437569076b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740835ae09ad1bfe0db19896c8f3378e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
其中正确的有
您最近一年使用:0次
2022-08-23更新
|
454次组卷
|
5卷引用:湖北省咸宁市咸安区2021-2022学年八年级下学期期末数学试题
湖北省咸宁市咸安区2021-2022学年八年级下学期期末数学试题湖北省黄石市四区2022--2023学年八年级下学期期末数学试题(已下线)专题1.15 特殊平行四边形(全章分层练习)(培优练)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)(已下线)期末真题必刷04(压轴选填60题12个考点专练)-2023-2024学年八年级数学下学期期末考点大串讲(人教版)(已下线)期末各名校真题复习(压轴必刷48题15考点)-2023-2024学年八年级数学下学期期中期末考点归纳满分攻略讲练(人教版)
名校
3 . 【问题情境】如图1,已知点A,B在直线l的同侧,在直线l上找一点P,使得
的值最小.
小军的思路是:如图2,作点A关于直线l的对称点
,连接
,则
与直线l的交点P即为所求.
【启发应用】请参考小军同学的思路,探究并解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/4d3e27bf-ace0-4007-ad19-de4cedd14c58.png?resizew=384)
(1)如图3,在图2的基础上,设
与直线l的交点为点C,过点B作
,垂足为点D.若
,
,
,求出此时
的最小值;
(2)如图3,若
,
,
,则此时
的最小值为______;
(3)【解决问题】根据以上解决问题的思路,直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac656ec89607f52b5353dba400fab6.png)
小军的思路是:如图2,作点A关于直线l的对称点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
【启发应用】请参考小军同学的思路,探究并解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/4d3e27bf-ace0-4007-ad19-de4cedd14c58.png?resizew=384)
(1)如图3,在图2的基础上,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0a2d7d40a6c0bf1fddb802db381689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ae300e4ff3e89d0e1e5671eacd9585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac656ec89607f52b5353dba400fab6.png)
(2)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac656ec89607f52b5353dba400fab6.png)
(3)【解决问题】根据以上解决问题的思路,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36871ada26350ff6745fa59a60106689.png)
您最近一年使用:0次
2022-08-12更新
|
326次组卷
|
3卷引用:山东省济宁市汶上县2021-2022学年八年级下学期期中数学试题
山东省济宁市汶上县2021-2022学年八年级下学期期中数学试题(已下线)期中真题精选(压轴60题专练)-2022-2023学年八年级数学下学期期中期末考点大串讲(人教版)山西省太原市小店区山西大学附属中学校2022-2023学年七年级下学期期中数学试卷
真题
名校
4 . 如图,矩形
中,
,点E在折线
上运动,将
绕点A顺时针旋转得到
,旋转角等于
,连接
.
上时,作
,垂足为M,求证
;
(2)当
时,求
的长;
(3)连接
,点E从点B运动到点D的过程中,试探究
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0ecba7e1969a265ff75bcb17ed9d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790d5327d89fc1b3145e546482a46a6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4714e33baa77ada39336c475a4be1cbe.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bbd04b75eb3db55fc13d78e7c30188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
您最近一年使用:0次
2022-08-04更新
|
2731次组卷
|
11卷引用:2022年江苏省南通市中考数学真题
2022年江苏省南通市中考数学真题(已下线)专题20 图形平移、旋转,投影与视图-三年(2020-2022)中考数学真题分项汇编(江苏专用)(已下线)专题21 图形的相似-三年(2020-2022)中考数学真题分项汇编(江苏专用)广东省茂名市第一中学2022-2023学年九年级上学期期中考试数学试卷(1-4班)江苏省无锡市江阴市璜塘中学、峭岐中学等三校2022-2023学年九年级下学期3月月考数学试题(已下线)黄金卷2-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(抚本铁辽葫专用)2023年广东省广州市海珠区绿翠现代实验学校中考二模数学试题(已下线)2023年广州等市二模(几何综合)2024年福建省龙岩市长汀县中考一模数学试题(已下线)查补培优冲刺01 三角形与四边形综合压轴-【查漏补缺】2024年中考数学复习冲刺过关(江苏专用)2024年广东省东莞中学中考三模数学试题
5 . 如图,菱形ABCD周长为16,∠DAC=30°,E是AB的中点,P是对角线AC上的一个动点,则PE+PB的最小值是 _____ .
您最近一年使用:0次
2022-07-25更新
|
322次组卷
|
4卷引用:广东省东莞市松山湖莞美学校2021-2022学年八年级下学期期中数学试题
6 . 【教材呈现】如图是华师九年级上删数学教材第77页的部分内容.
【定理证明】
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/23/e718ee91-2a10-47b7-8118-6926068eecd6.png?resizew=550)
(1)请根据材料内容,结合图①,写出证明过程.
【定理应用】
(2)如图②,四边形
中,
、
、
分别为
、
、
的中点,边
、
延长线交于点
,
,则
的度数是__________.
(3)如图③,矩形
中,
,
,点
在边
上,且
.将线段
绕点
旋转一周,得到线段
,
是线段
的中点,直接写出旋转过程中线段
长的最大值和最小值.
如图, 在![]() ![]() ![]() ![]() ![]() ![]() ![]() 对此,我们可以用演绎推理给出证明. ![]() |
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/23/e718ee91-2a10-47b7-8118-6926068eecd6.png?resizew=550)
(1)请根据材料内容,结合图①,写出证明过程.
【定理应用】
(2)如图②,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6414089941feb5d8a4a6a49566b9ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
(3)如图③,矩形
![](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)
![](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/5d2e57629856cc8ed7ab28ca9ca76d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
您最近一年使用:0次
2022-07-20更新
|
239次组卷
|
5卷引用:河南省新乡市卫辉市2021-2022学年九年级上学期期中数学试题
河南省新乡市卫辉市2021-2022学年九年级上学期期中数学试题河南省新乡市封丘县2021-2022学年九年级上学期期末数学试题贵州省铜仁市沿河土家族自治县2021-2022学年八年级下学期期中数学试题河南省南阳市淅川县2022-2023学年九年级上学期期中数学试题(已下线)第一次月考难点特训(二)与特殊平行四边形有关的压轴题-【微专题】2022-2023学年九年级数学上册常考点微专题提分精练(北师大版)
名校
7 . 如图,正方形ABCD的边长为8,点E在AB上,BE=2,点M,N为AC上动点,且
,连接BN,EM,则四边形BEMN周长的最小值为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbde487fedd775b77cebce7d215ecf.png)
您最近一年使用:0次
2022-06-30更新
|
436次组卷
|
3卷引用:安徽省芜湖市2021-2022学年八年级下学期期末数学试题
8 . 问题提出
(1)如图1,点P是
的平分线OC上一点,
,垂足为D,若
,则点P到边OB的距离是 ;
问题探究
(2)如图2,已知矩形ABCD的一边AB长为6,点P为边AD上一动点,连接BP、CP,且满足
,求BC的最小值;(结果保留根号)
问题解决
(3)如图3,正方形ABCD是某植物园的花卉展示区的部分平面示意图,其中
米,三条观光小路BM、BN和MN(小路宽度不计,M在AD边上,N在CD边上)拟将这个展示区分成四个区域,用来展示不同的花卉,根据实际需要,MB平分
,并且要求
的面积尽可能小,那么是否存在满足条件的面积最小的
?若存在,请求出
的面积的最小值.若不存在,请说明理由.(结果保留根号)
(1)如图1,点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3224457d394d71df7d2955be6149dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
问题探究
(2)如图2,已知矩形ABCD的一边AB长为6,点P为边AD上一动点,连接BP、CP,且满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60faf3a9bc2daab1f386ec116d74b703.png)
问题解决
(3)如图3,正方形ABCD是某植物园的花卉展示区的部分平面示意图,其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01897d69be95eb4241a016b8f140b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7098c45594103b46e6b57cfc6023e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://img.xkw.com/dksih/QBM/2022/6/1/2992082759155712/2992758070747136/STEM/8452c7e7-d729-4b1f-85fa-f38b14db05dd.png?resizew=489)
您最近一年使用:0次
2022-06-02更新
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173次组卷
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2卷引用:2022年陕西省咸阳市武功县初中学业水平模拟考试(三)数学试题
9 . 如图,四边形ABCD中,AB//CD,∠ABC=60°,
,点M是四边形ABCD内的一个动点,满足∠AMD=90°,则点M到直线BC的距离的最小值为( )
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988293082185728/2991282226601984/STEM/4b35beef-2d7b-413b-9da8-52360b57c039.png?resizew=219)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e766ee7d7df21e063b7dfc096c60f4ae.png)
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988293082185728/2991282226601984/STEM/4b35beef-2d7b-413b-9da8-52360b57c039.png?resizew=219)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 如图,点E在边长为2的正方形ABCD内,且
,点F是边AD的中点,点G是边CD上的一动点,连接EG,FG.
(1)当
,且
时,四边形AEGF的面积为_________ ;
(2)
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a48e31deb78dadacc7e128ef3eb2a054.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9a76d35ebcd0142e6804d5fb3772b4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee043f2db90b469c6c75d92851041a21.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/3f10b208-48fe-446c-895b-4f00c9826d41.png?resizew=145)
您最近一年使用:0次