在
中,
,
,
,点P是
的中点,M在
上(不与点C重合),连接
,在
的左侧作矩形
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/05781825-819e-4b9c-9127-b5d23a0137f8.jpg?resizew=447)
(1)如图1,当点N在线段
上时,
①若
,求
的长;
②求
的值.
(2)如图2,当
时,
①若矩形
在
内部(包括边界),设
,写出
的长与x的函数关系式,并求x的取值范围;
②若矩形
的两个顶点落在
的同一条边上,直接写出
在矩形
内部的线段长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/05781825-819e-4b9c-9127-b5d23a0137f8.jpg?resizew=447)
(1)如图1,当点N在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810fee760e06028fb7d37e65db79bfa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe8330642ce612d912cd93b1cf8d83a.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965308eadb1a4916005acd5bc0c83b14.png)
①若矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e787bb792dcd936cb4e87023c95011b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
②若矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac779b70bd71ae3a77721efb04c62b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
更新时间:2024-04-02 20:27:42
|
相似题推荐
解答题-证明题
|
困难
(0.15)
【推荐1】【问题背景】(1)如图1,点B,C,D在同一条直线上,
,求证:
;
【问题探究】(2)如图2,在四边形
中,
,点E为边
上一点,
,若
,求证:
;
【拓展运用】(3)如图3,在四边形
中,
,点E为边
上一点,
,若
,则
______(用m,n表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a354c5e85e1b9f4c13d6814344d344e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319647b26c0fbbb38b3eb58b912352e.png)
【问题探究】(2)如图2,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41aba1711910c6f533cc94319104f4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1a9ed724ceece5e56d21ac4a3213cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2226397b9bdbc77087433b05fb61209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ee81b6066188abee9d167b6c7f3f71.png)
【拓展运用】(3)如图3,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af7f3ef883a66428798c0665810ec71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1a9ed724ceece5e56d21ac4a3213cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb16570493f2287ec3f45eb482e4eebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a0525ccd4dbaf882ff0967131a56b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/3a59cffa-6d47-468e-a6b0-e61ddeae044d.png?resizew=413)
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解答题-问答题
|
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【推荐2】【问题提出】
如图1,在矩形
中,点
在
上,且
.动点
以每秒1个单位的速度从点
出发,在折线段
上运动,连接
,当
时停止运动,过点
作
,交矩形
的边于点
,连接
.设动点
的运动路程为
,线段
与矩形
的边围成的三角形的面积为
.
【初步感知】
如图2,动点
由点
向点
运动的过程中,经探究发现
是关于
的二次函数,如图2所示,抛物线顶点
的坐标为
,与
轴的交点
的坐标为
,与
轴的交点为点
.
(1)当点
与点
重合时,点
与点
重合,求矩形
的边
和
的长;
【深入探究】
(2)点
由点
向终点运动的过程中,求
关于
的函数表达式;
【拓展延伸】
(3)是否存在3个路程
,
,
,当
时,3个路程对应的面积
均相等.
如图1,在矩形
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7e5389296a5226b31c66f711c3e2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84756764173829ecd7d0272785c7e19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
【初步感知】
如图2,动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ae8510c1d3909fe6647cf3ef7846e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38849daa586e272c25dd439dde2a4442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
【深入探究】
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
【拓展延伸】
(3)是否存在3个路程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18875101c5682fdb50976ae6d958bb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cece8a1073b11eb11aed88ae1fc5b365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】如图1,点
是直线
:
在第一象限上的一个动点,直线
与
轴交于点
,与
轴交于点
,过
作
轴的垂线,垂足为点
,过点
作
的平行线交
的平分线于点
.
(1)若
,求点
的坐标.
(2)如图2,过
作
于点
,
于点
,求证:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/a37235ff-9232-4928-9e8f-54335dfd21b2.png?resizew=165)
(3)如图3,若
点坐标为
,射线
与
交于点
,在
轴上找一点
,使
以
为腰的等腰三角形,请直接写出点
的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/e7a6f708-4b91-4c2a-b910-c69de5c7da52.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f9c3b578fc0598d5ec6c79404c6cc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/e209be3b-f61e-49e0-ae51-d92668ba4ae0.png?resizew=152)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f8e40fe5b23cfec1dc97caedf3abc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)如图2,过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f4eb640505099730001c4cbe65c3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369892e3582bca97accd47b667d2805c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee44aaa89f99f96a1c7f7397b9d9fcc2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/a37235ff-9232-4928-9e8f-54335dfd21b2.png?resizew=165)
(3)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a93a7a568a6743e3bb76c83d4eb3c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96645a3530e72d5d733d2c72147d340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/e7a6f708-4b91-4c2a-b910-c69de5c7da52.png?resizew=170)
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(0.15)
【推荐2】点E是正方形ABCD内一点,连接BE、CE、DE,且AB=CE.
(1)如图1,求∠BED的度数;
(2)如图2,过点E作EF⊥BE,且BE=EF,连接DF,H为DF的中点.求
的值.
(1)如图1,求∠BED的度数;
(2)如图2,过点E作EF⊥BE,且BE=EF,连接DF,H为DF的中点.求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b7487dc1ef9265710aa3a687a50a8f.png)
![](https://img.xkw.com/dksih/QBM/2019/6/16/2226697239166976/2228923589844992/STEM/ddcb9210207a40d59fec47848d22a8aa.png?resizew=243)
您最近一年使用:0次
解答题-问答题
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困难
(0.15)
【推荐1】如图1,已知抛物线经过坐标原点O和x轴上另一点E,顶点M的坐标为(2,4),矩形ABCD的顶点A与点O重合,AD,AB分别在x轴,y轴上,且AD=2,AB=3.
(1)求该抛物线所对应的函数关系式;
(2)将矩形ABCD以每秒1个单位长度的速度从图1所示的位置沿x轴的正方向匀速平行移动,同时一动点P也以相同的速度从点A出发向B匀速移动,设它们运动的时间为t秒(0≤t≤3),直线AB与该抛物线的交点为N(如图2所示).
①设以P、N、C、D为顶点的多边形面积为S,试问:S是否存在最大值?若存在,求出这个最大值;若不存在,请说明理由.
②当t=1时,射线AB上存在点Q,使△QME为直角三角形,请直接写出点Q的坐标.
(1)求该抛物线所对应的函数关系式;
(2)将矩形ABCD以每秒1个单位长度的速度从图1所示的位置沿x轴的正方向匀速平行移动,同时一动点P也以相同的速度从点A出发向B匀速移动,设它们运动的时间为t秒(0≤t≤3),直线AB与该抛物线的交点为N(如图2所示).
①设以P、N、C、D为顶点的多边形面积为S,试问:S是否存在最大值?若存在,求出这个最大值;若不存在,请说明理由.
②当t=1时,射线AB上存在点Q,使△QME为直角三角形,请直接写出点Q的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/7ce19f10-70d4-4ff2-886b-9c96c08e720b.png?resizew=351)
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【推荐2】如图,已知抛物线经过点A(-1,0),B(4,0),C(0,2)三点,点D与点C关于x轴对称,点P是线段AB上一个动点,设点P的坐标为(m,0),过点P作x轴的垂线
交抛物线于点Q,交直线BD于点M.
(1)求该抛物线所表示的二次函数的表达式;
(2)在点P运动过程中,是否存在点Q,使得△BQM是直角三角形?若存在,求出点Q的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求该抛物线所表示的二次函数的表达式;
(2)在点P运动过程中,是否存在点Q,使得△BQM是直角三角形?若存在,求出点Q的坐标;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2020/3/24/2433551940517888/2433664071843840/STEM/2429885d51624491a40d3342a9660659.png?resizew=169)
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【推荐1】问题提出:
(1)如图1,在一间黑暗的屋子里用一盏白炽灯照射正下方如图所示的球.已知球到灯和到地面的距离相等,且球的直径是
即
,则这个球在地面上的影子的面积是______.(结果保留
)
问题探究:
(2)将两个全等的等腰直角三角形摆成如图2所示的样子(图中所有点、线都在同一平面内,点F、G在
边上),若
,求
的最小值,并证明你的结论.(结果保留根号)
问题解决:
(3)某地质勘察队,为了进行资源勘测,建立了一个四边形野外勘察基地
,如图3所示,现在此勘察基地铺设了两条道路,
,并使得
且
,现测得
米,
米,
,根据工作需要在点
处安装了一个可转动的照明灯,照明灯的两边缘光线夹角不变且与
分别交于点G、H(受实际因素影响点G、H始终在
边上),经过测量,
与
恰好互余,为了尽快完成勘察工作,勘察队需要夜间工作,那么夜间工作时,整个基地未被灯光A照到的盲区部分面积是否存在最大值?若存在,请求出最大面积是多少,如果不存在,请说明理由.
(1)如图1,在一间黑暗的屋子里用一盏白炽灯照射正下方如图所示的球.已知球到灯和到地面的距离相等,且球的直径是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57171806f407a98dd8a796d4d2d6bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739c4d0dc2cac3bfd94a87f1d0d0633b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
问题探究:
(2)将两个全等的等腰直角三角形摆成如图2所示的样子(图中所有点、线都在同一平面内,点F、G在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
问题解决:
(3)某地质勘察队,为了进行资源勘测,建立了一个四边形野外勘察基地
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d26633cc499d15d86afb2f54a492cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323e6a8ea015d8263efdc1b2b9dc47a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6bb959f0a7b0b26426796ec8505b339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c522e54f4ca7de9362b98963964ac18d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d249d7a9fb5919efc0e123e4e7243f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5428012aa03d156773f9e63b97438d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936af8bf3f3ed7a2d40e1211860fc347.png)
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【推荐2】如图,已知二次函数y=﹣x2+mx+n(m,n均为常数)的图像顶点为A,与x轴交于B(﹣1,0)、C两点,与y轴交于点D(0,3).
(1)求该抛物线解析式.
(2)如图1,连接AD交x轴于点E,连接AB交y轴于点K,点M是抛物线四象限且位于对称轴右侧图像上一点,过点M作MP⊥AD交直线AD于点P,连接MD.若∠M=∠BKO,求出点M的坐标,以及此时△MDP的周长,并写出解答过程.
(3)如图2,将抛物线y沿射线AE方向平移4
个单位后,得到一个新的二次函数记为y′,令y′与y两函数图像相交于点Q,连接CQ,点R为原抛物线图像上一动点,点F为直线AE上一动点,是否存在以点C,Q,R,F为顶点的四边形为平行四边形?若存在,请求出点R的坐标,并把求其中一个R点的坐标的过程写出来.
(1)求该抛物线解析式.
(2)如图1,连接AD交x轴于点E,连接AB交y轴于点K,点M是抛物线四象限且位于对称轴右侧图像上一点,过点M作MP⊥AD交直线AD于点P,连接MD.若∠M=∠BKO,求出点M的坐标,以及此时△MDP的周长,并写出解答过程.
(3)如图2,将抛物线y沿射线AE方向平移4
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2021/11/12/2849448218836992/2851292691955712/STEM/45fbce9d-4438-4807-be3c-cbda40a5cd39.png)
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