在平面直角坐标系
中,已知点
,将点P向左
或向右
平移
个单位长度,再向下
或向上
平移
个单位长度
,得到点
,再将点P关于直线
对称得到点Q,称点Q为点P的k倍“对应点”.特别地,当M与
重合时,点Q为点P关于点M的中心对称点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/aaa72487-7e77-43e5-a7fc-0d4b87dfdce3.png?resizew=208)
(1)已知点
,
.
①若点M的坐标为
,画出点
,并直接写出点P的2倍“对应点”Q的坐标;
②若
,直线
上存在点P的2倍“对应点”,直接写出b的取值范围;
(2)半径为3的
上有不重合的两点M,P,若半径为1的
上存在点P的k倍“对应点”,直接写出k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d56e970fdb018d112f0494fb8fe921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465a56c906fba99ade616775f37cb8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396f2055f52c0c2ce16a6d456df2ae51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb5282e30513e3bc00a271065d263c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b151b08d8f44689da58500dfe9a90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3989d38e19836215cbc7c31868eee472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714d0f40406a719ebda72ebd545a7fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a083af79190de95296ab449077b4e73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5034016be10ad0c034f5d539c2b111a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/aaa72487-7e77-43e5-a7fc-0d4b87dfdce3.png?resizew=208)
(1)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68cf158dfd0eda47e33a03587aab0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
①若点M的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c11be7bb5e7cc0f1165f7262b1a50ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9344303efb0541eb449d782ad2b488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
(2)半径为3的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
2023·北京东城·一模 查看更多[3]
2023年北京市东城区中考一模数学试题(已下线)专题26 新定义压轴题(共59题)-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(北京专用)(已下线)2023年北京一模(新定义问题)
更新时间:2023-05-08 16:23:46
|
相似题推荐
解答题-计算题
|
困难
(0.15)
名校
【推荐1】如图,平面直角坐标系中直线
与直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4b99f920ce922c4709077a6662446.png)
相交于点A,直线
与x轴相交于点B,与y轴相交于点C,点
,点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/c960e41d-d70d-4545-91a8-90420c39097e.png?resizew=421)
(1)如图1,求点A的坐标;
(2)如图1,若将
向x轴的正方向平移a个单位,得到
,点D与点B重合时停止移动,设
与
重叠部分的面积为S,请求出S与a的关系式,并写出a的取值范围;
(3)如图2,现将
向x轴的正方向平移12个单位得到
,直线
与直线
交于点G,再将
绕点G旋转,旋转角度为
,记旋转后的三角形为
,直线
与直线
的交点为M,直线
与直线
的交点为N,是否存在
为等腰三角形?若存在请直接写出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239a6b81a783c8d193c00eb913084011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4b99f920ce922c4709077a6662446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca782a864c4486605df2e4a0c73060c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c86c0be5757c4cdd74180f0682a2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7297b0372f18b204bde750901133bffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/c960e41d-d70d-4545-91a8-90420c39097e.png?resizew=421)
(1)如图1,求点A的坐标;
(2)如图1,若将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f239a35de1828b14a58be5bd5af9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c7798e252290f18ce2b86338a33ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c7798e252290f18ce2b86338a33ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(3)如图2,现将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f239a35de1828b14a58be5bd5af9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad78c5d5de5815e5d84923ba2756e332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fecc2ce8e61245f84627eb61e072eb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3bb9aa5ae1852d9b19ab2909463fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a26de8257495e75742d3ac5de50dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2f5079512a1e1fa0e38c28edc4df6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e25fddd1b726d7192eece0d8dfcbb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68fe8a193638efe7f3a864fa07cee97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102716b8d55b91adb37dfe019cc7231b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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(0.15)
【推荐2】如图,在平面直角坐标系中,已知
点与
点关于
轴对称,连接
.
解析式;
(2)如图2,已知点
在
的延长线上,连接
,设点
的横坐标为
的面积为
,试用含
的式子表示
;
(3)如图3,在(2)的条件下,过点
作
轴于点
,取
的中点
,连接
并延长交
轴于点
,作
交
于点
,连接
并延长交
轴于点
,交
的延长线于点
,作
,点
在
上,连接
并延长,交
轴于点
,求
点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d9c6f7df4aa00c4231502eaa2de86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)如图2,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b501ad4237801071c3608ea43fb3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(3)如图3,在(2)的条件下,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fbd9b5e5d8be69373850d7faebdaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e41916523511064a97de39b0f2b323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e5be2a92b5101bf41b4b43022c74a4.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/8e9e953a4a5f98c96bbe67cbaadf76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95bbaefefcecc6a8b3780b2635ce28d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐1】如图,在
中,
,
,
,
是三角形的角平分线;
是边
上的动点,
于
,交
于
,
、
分别交
于
、
.
(1)如果
是等腰三角形,求
的长;
(2)以
为圆心、
长为半径作
,再以
为圆心、
为半径作
.如果
与
相切,求
的长;
(3)在点
的运动过程中,
是否可能与
相似?如果能相似,求此时
的长;如果不能相似,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4cec8a7b87c2bc9fb135eadb7aa5c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a81c5699a01b6b12b16ff9bce6d6ba.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1928a21fbe0b3ccc567a2e406addc77.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/7674894c-5924-46c6-a0fc-fca5f8f21c79.png?resizew=472)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.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/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(3)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
名校
【推荐2】如图(1),矩形
中,
,
,
经过点
且与
相切于点
,且点
,
,
共线,
与
,
边分别交于点
,点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/26/b3499197-45fd-4840-8886-9dc3d8a68dc2.png?resizew=348)
(1)
________
(用
,
表示).
(2)当点
平分
时,
,
边上是否存在点M,N,使得四边形
为平行四边形?若存在,请求出
,
的长;若不存在,请说明理由.
(3)如图(2),连接
,
交于点
,
与
交于点
,与
交于点
,求证:无论
,
为何值,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e781a2489271bfd1597cba1bb6f5887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df81cda12d7601d58b1d9c7c180c4d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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://img.xkw.com/dksih/QBM/editorImg/2023/4/26/b3499197-45fd-4840-8886-9dc3d8a68dc2.png?resizew=348)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5f441402ee632377b6bedeb060f3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当点
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb11da548560cae44e16c7e48174367f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
(3)如图(2),连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67716ac738ee2911a69bf4063110a5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cef92584cc9b68a15bdd26dff87402f.png)
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解答题-问答题
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困难
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【推荐3】如图1,将半径为2的
剪掉一个
的扇形之后,得到扇形AOB,将扇形AOB放置在数轴上,使点B与原点重合且OB垂直于数轴,然后将图形沿数轴正方向滚动,直至点A落在数轴上时停止滚动.记优弧AB与数轴的切点为点P,过点A作直线l平行于数轴,当l与弧AB有两个公共点时,记另一个公共点为点C,将直线l绕点C顺时针旋转
,得到直线m,交数轴于点Q.
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986936580505600/2992490825023488/STEM/0a49452a-33bd-4d8a-bcf9-5e34b06b1b53.png?resizew=558)
(1)当点A落在数轴上时,其对应数轴上的实数为___________;
(2)当直线l经过圆心O时,线段PQ的长度为___________;
(3)当CQ与扇形AOB所在圆相切于圆的左侧时,求弦AC的长及点Q对应数轴上的实数;
(4)直接写出整个运动过程中PQ长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986936580505600/2992490825023488/STEM/0a49452a-33bd-4d8a-bcf9-5e34b06b1b53.png?resizew=558)
(1)当点A落在数轴上时,其对应数轴上的实数为___________;
(2)当直线l经过圆心O时,线段PQ的长度为___________;
(3)当CQ与扇形AOB所在圆相切于圆的左侧时,求弦AC的长及点Q对应数轴上的实数;
(4)直接写出整个运动过程中PQ长度的最大值.
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解答题-作图题
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困难
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名校
【推荐1】如果有点A、B、C、D,使得四边形
是边长为定值k的菱形,那么和A点相对的顶点C称为A的“k对点”,B、D两个和A相邻的点称为A的“k邻点”.
①在
、
、
这三个坐标中,P的坐标不可能是______;
②若原点的两个“1邻点”的坐标为
和
,在图中画出此时的P点,并证明此时
;
③若直线
上存在点P,直接写出b的取值范围;
(2)若M点坐标为
,N点坐标为
,Q点为M点的“2对点”,并且其两个“2邻点”到N点的距离都为3,直接写出此时Q点纵坐标
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa71aa2ea224669698850108751a71a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe8803bc5d850ec2a6f15bcdb12c896.png)
②若原点的两个“1邻点”的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca7beb3e0c0038061ad46c4fe77b295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899a8ce31c9f25c0f97cf81d82a45d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9934cf2feb65b00392ba39d8242e47.png)
③若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
(2)若M点坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69bed1ac7156e25551d2ab4f515f1395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dbd9ed5ae3f4e17fd82617d80d1a09f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80ce24d4a9093f99b47eb97913e71d3.png)
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解答题-问答题
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困难
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【推荐2】对于平面直角坐标系
中的图形
和图形
.给出如下定义:在图形
上存在两点A,B(点A,B可以重合),在图形
上存在两点M,N,(点M、N可以重合)使得
,则称图形
和图形
满足限距关系
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986921767010304/2988849022517248/STEM/7e640f9e-e07b-4594-b1ea-4a9d04c26985.png?resizew=416)
(1)如图1,点
,点P在线段
上运动(点P可以与点C,E重合),连接
.
①线段
的最小值为__________,最大值为__________;线段
的取值范围是__________;
②在点O,点D中,点__________与线段
满足限距关系;
(2)在(1)的条件下,如图2,
的半径为1,线段
与x轴、y轴正半轴分别交于点F,G,且
,若线段
与
满足限距关系,求点F横坐标的取值范围;
(3)
的半径为
,点H,K是
上的两个点,分别以H,K为圆心,2为半径作圆得到
和
,若对于任意点H,K,
和
都满足限距关系,直接写出r的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3ff0b0fea1cb642d3f6be77a1ff32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eaa137a2290a9a9ec7ad635d17dbb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3ff0b0fea1cb642d3f6be77a1ff32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eaa137a2290a9a9ec7ad635d17dbb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8021150f6a208a316d31cb8313e42b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3ff0b0fea1cb642d3f6be77a1ff32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6eaa137a2290a9a9ec7ad635d17dbb6.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986921767010304/2988849022517248/STEM/7e640f9e-e07b-4594-b1ea-4a9d04c26985.png?resizew=416)
(1)如图1,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8040fbbe3092651b5333f07cd7b8753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf102743864ca9de02284defb7cc8fb.png)
①线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
②在点O,点D中,点__________与线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9171484a68c84cad91e4f2233392f600.png)
(2)在(1)的条件下,如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12850119b4a552fd2f31178210ba7f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e1b2d25e575038885c5eddf1ddb229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f3be3806ce3b7b636535b64c8db3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9110c10c6b6abeb9021f59dd7852125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f3be3806ce3b7b636535b64c8db3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9110c10c6b6abeb9021f59dd7852125.png)
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解答题-问答题
|
困难
(0.15)
【推荐1】如图,
为
的外接圆,
,点 D为劣弧
上一点 (不与点 B,C重合),连结
,且
交
于点E.
,求
的大小;
(2)若
,求
的长;
(3)若
求四边形
的面积S关于线段
的长x的函数解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc4bb4423e7ee3d6fd3b96431a59e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f722e90cbc4e1affa1da82ebf13525a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bc8e50eeccced1d7f3bc52e09a7d03.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22649aa6058e66203acfed1689657312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c37ee0ed2da414818e6635ff2709b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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解答题-证明题
|
困难
(0.15)
解题方法
【推荐2】
是等边三角形,D为AB上一点,E为BC上一点,
.
(1)如图1,
,
,求DE的长;
(2)如图2,过D作
于F,且满足
,连接EG交CD于点J,求证:
;
(3)如图3,在(1)和(2)的条件下,将
绕点C旋转,记旋转中的
为
,连接
、
,请直接写出
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679372e54c59c5cf67931b12b9833e02.png)
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d71bfd5b1dae3d2784a5f869a0cdff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
(2)如图2,过D作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d222d3bcc808dd5b62b2a9ccb543a6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10616a0497d4be0db0e1ef347ab6ecfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190e20a9a3611ca91d2af8b68abc2350.png)
(3)如图3,在(1)和(2)的条件下,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4087669b0614450e763365f1b4c6d6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4087669b0614450e763365f1b4c6d6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/755f3ae8bbf59532950058553ac5f028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d2094777538ba6a70ea65d5061ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc826ea2947f115b22d6adf5bd8fb1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a39875b4a0b2bee475b4f64d1970d2.png)
![](https://img.xkw.com/dksih/QBM/2021/1/14/2636212391141376/2637414538485760/STEM/c229187c-de46-44f4-837c-55b9ba14aeb4.png)
您最近一年使用:0次