如图,在平面直角坐标系中,
,C为y轴正半轴上的一点,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/81dd5b95-a9f4-4b8b-9e36-574cfde100ec.jpg?resizew=142)
(1)求
和
的长;
(2)点D是第一象限内的点、且点D的坐标为
.
①若点D是
垂直平分线上的一点、求
的长;
②是否存在d的值、使得
?若存在,求出d的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d57173ef4cd72eb270686875dfd623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcc6c274efe20094c4289d2649e4bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aaf8e2eb7135c39715156ea5d10887c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/81dd5b95-a9f4-4b8b-9e36-574cfde100ec.jpg?resizew=142)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)点D是第一象限内的点、且点D的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190dd8ffd335367ed4dd46b7c6ec0d71.png)
①若点D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
②是否存在d的值、使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532aece6cfd67e2a97977eed978dbf2b.png)
更新时间:2024-04-02 15:26:46
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】在平面直角坐标系中,O为原点,点
,点
,且点B在A的右边.将线段
平移,平移后A,B的对应点分别为点
,
,其中
,
.
(1)求b和k的值;(用含a的代数式表示k)
(2)探求当a变化时,三角形
与三角形
的面积大小关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef64526a3c0e0792434121e165d66c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a4eaae9af68b6999740560b7450982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382329e44b05a3c966d6ed195a916b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b3cacc24c7cd34a4a7c20292ad5382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求b和k的值;(用含a的代数式表示k)
(2)探求当a变化时,三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3201d3796ed9a29338aac25245a7c8e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,点
,
的坐标分别为
,
,现将线段
进行平移,分别得到点
,
的对应点
,
,且
点坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/fa4a6500-5b8c-4c42-b44e-e567749028da.png?resizew=423)
(1)
的坐标为______;
(2)①求四边形
的面积;
②在
轴上存在一点
,连接
,
,则
,求点
的坐标;
(3)点
是直线
上的一个点,连接
,
,请直接写出
,
与
之间的数量关系.
![](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/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/fa4a6500-5b8c-4c42-b44e-e567749028da.png?resizew=423)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)①求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e3f1b6181d46930695cd3cab7fa88f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecff6005f926665a926c07ad62e0f032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5bf4e223aa2cce5e53d8b21d9b73e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300d3ec6447250bb25915ae86873929a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28747ba8bb6f88c83294998426c8bb05.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐1】如图,已知
中,
,
,
,
、
是
边上的两个动点,其中点
从点
开始沿
方向运动,且速度为每秒
,运动至点
停止;点
从点
开始沿
方向运动,且速度为每秒
,它们同时出发,同时停止,设出发的时间为
秒.
![](https://img.xkw.com/dksih/QBM/2024/2/21/3437748520484864/3446341166440448/STEM/e06622ab90154bab93b956484b9ca6f6.png?resizew=211)
(1)当
秒时,求
的长;
(2)当点
在边
上运动时,求出发时间为几秒时,
是等腰三角形?
(3)t为何值时,点P在
的垂直平分线上(按不同的情况画出图形,并解答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f36072b3b677715eb9e6420e834c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559430b68a8ff1e7b21df565530966c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7cd08caa03d0b13b0b99292884d9d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67f966f8f6705ca3a8916959386eaab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7012d1ff11db5e150182e19646814cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a11e8c4c6bfbf140ee21f99c0b5e6c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/2024/2/21/3437748520484864/3446341166440448/STEM/e06622ab90154bab93b956484b9ca6f6.png?resizew=211)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a551505ae42b49904bab59b17012d8.png)
(3)t为何值时,点P在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在
中,
.
(1)用直尺和圆规按照要求作图,不写作法,保留作图痕迹,作
的角平分线
,交
于点D;
(2)在
上取任一点E,连接
、
,猜想线段
和线段
的数量关系,并证明你的猜想.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/18/1a7e3359-0233-4132-ba27-6c2324537b9d.png?resizew=91)
(1)用直尺和圆规按照要求作图,不写作法,保留作图痕迹,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】能够完全重合的平行四边形纸片ABCD和AEFG按图①方式摆放,其中AD=AG=5,AB=AE=9.点D,G分别在边AE,AB上,CD与FG相交于点H.
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783992971075584/2784809402974208/STEM/a5f8bf33-948c-4368-903b-24f1ef2d758a.png?resizew=166)
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783992971075584/2784809402974208/STEM/79bb534f-0835-4e02-8f18-05df9d2edb62.png?resizew=187)
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783992971075584/2784809402974208/STEM/480e53d3-c97e-4921-860f-d46b2abb7133.png?resizew=167)
【探究】求证:四边形AGHD是菱形.
【操作一】固定图①中的平行四边形纸片ABCD,将平行四边形纸片AEFG绕着点A顺时针旋转一定的角度,使点F与点C重合,如图②.则这两张平行四边形纸片未重叠部分图形的周长和为 .
【操作二】将图②中的平行四边形纸片AEFG绕着点A继续顺时针旋转一定的角度,使点E与点B重合,连接DG,CF,如图③,若∠BAD=
,求四边形DCFG的面积.
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783992971075584/2784809402974208/STEM/a5f8bf33-948c-4368-903b-24f1ef2d758a.png?resizew=166)
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783992971075584/2784809402974208/STEM/79bb534f-0835-4e02-8f18-05df9d2edb62.png?resizew=187)
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783992971075584/2784809402974208/STEM/480e53d3-c97e-4921-860f-d46b2abb7133.png?resizew=167)
【探究】求证:四边形AGHD是菱形.
【操作一】固定图①中的平行四边形纸片ABCD,将平行四边形纸片AEFG绕着点A顺时针旋转一定的角度,使点F与点C重合,如图②.则这两张平行四边形纸片未重叠部分图形的周长和为 .
【操作二】将图②中的平行四边形纸片AEFG绕着点A继续顺时针旋转一定的角度,使点E与点B重合,连接DG,CF,如图③,若∠BAD=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,⊙O为锐角△ABC的外接圆,半径为5.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/29/79dece7d-068a-4cdb-9c05-8ed36b0f81b0.png?resizew=136)
(1)用尺规作图作出∠BAC的平分线,并标出它与劣弧
的交点E(保留作图痕迹,不写作法);
(2)若(1)中的点E到弦BC的距离为3,求BC的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/29/79dece7d-068a-4cdb-9c05-8ed36b0f81b0.png?resizew=136)
(1)用尺规作图作出∠BAC的平分线,并标出它与劣弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)若(1)中的点E到弦BC的距离为3,求BC的长.
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