四边形
内接于
,直径
与弦
交于点
,直线
与
相切于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/5c18c841-0031-4b9e-babf-a743e0be62ba.png?resizew=380)
(1)如图1,若
,且
,求证:
平分
;
(2)如图2,连接
,若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/5c18c841-0031-4b9e-babf-a743e0be62ba.png?resizew=380)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618c5704137191d21172232bdb26b4d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd672d69ffd5da6d0fc60f714803c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e98f2e85bdf9c6669c14f8966ed53be.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06e5cbe8c590d80326848df6975679c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2214016dc12015eee1414e8c4c6662.png)
2022·四川巴中·中考真题 查看更多[4]
2022年四川省巴中市中考数学真题(已下线)第二十七章 相似(B卷·能力提升练)-【单元测试】2022-2023学年九年级数学下册分层训练AB卷(人教版)(已下线)专题2.13 直线与圆的位置关系(全章复习与巩固)(知识讲解)-2022-2023学年九年级数学下册基础知识专项讲练(浙教版)(已下线)专题17 与圆有关的位置关系-学易金卷:三年(2021-2023)中考数学真题分项汇编(四川专用)
更新时间:2022-09-17 17:42:17
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,过
外一点P作
的两条切线,切点分别为A,B,过点B作
交
于点C,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/32c5afbc-ac23-45e1-ae6a-661682f9e223.png?resizew=230)
(1)求证:
;
(2)若
,
,求
的半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343a4b9882e52e1b4181c1a33765a514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/32c5afbc-ac23-45e1-ae6a-661682f9e223.png?resizew=230)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e5a8fdbfbdf25f6937b7a2d6a4cd95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图1,在
中,
,
,
厘米,点
从点
开始沿
边向点
以每秒2厘米的速度移动,同时点
从点
开始沿
边向点
以每秒1厘米的速度移动,其中任意一点到达目的地后,两点同时停止运动.求:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/0a2874d9-29c1-43d2-aaab-e2ee505c18c9.png?resizew=238)
(1)点
从点
出发,经过几秒
的面积等于1平方厘米?
(2)是否存在以点
为圆心、
为半径的圆与直线
相切,若存在,求出经过几秒相切?若不存在,请说明理由;
(3)如图2,点
是
内的一个动点,且满足
,求线段
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/0a2874d9-29c1-43d2-aaab-e2ee505c18c9.png?resizew=238)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba70863115b0947e98214a7b2512167d.png)
(2)是否存在以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f6927cc2a930203ac34366383e76ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bd99e84ee3b2ed8b1588cf84116a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,已知
中,
,
,
,点
,
分别在
,
上,如果以
,
,
为顶点的三角形和以
,
,
为顶点的三角形相似,且相似比为
.
![](https://img.xkw.com/dksih/QBM/2018/11/3/2067592246632448/2068382284111873/STEM/19a8db6aa805492d8285ed1cd455be70.png?resizew=69)
根据题意确定
,
的位置,画出简图;
求
,
和
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882589c896c6993d9687f0e14a283481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf39a579261fd7a0ba598b2546b08c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d981bd8101e8abb81e85bdb467ebc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b781b83014cba03ac8f6743d06e134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7909220d1db380634534190b662ee0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf6101c529b7868bc1c2fd46aca16bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a3a3d168a18401e47576f70a692e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7909220d1db380634534190b662ee0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14c6709d2a04863cacdee618b20613e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d97ca5641e1be5eacbd1d0c210f42f.png)
![](https://img.xkw.com/dksih/QBM/2018/11/3/2067592246632448/2068382284111873/STEM/19a8db6aa805492d8285ed1cd455be70.png?resizew=69)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7909220d1db380634534190b662ee0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3686a991fb2ba017a6890bc6208e8a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b528aee01f2cd29dd20a153efad67b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19fb8c7a783539419a12a55d9d75a3e.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图1,在平面直角坐标系中,已知抛物线
经过点
,
,与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/16/7af1d520-0182-40d3-948d-b4c1d620a58d.png?resizew=323)
(1)直接写出该抛物线的表达式;
(2)设抛物线的顶点为
,连接
,
,
,求
的面积;
(3)如图2,抛物线的对称轴
交
轴于点
,若点
为
轴上方、对称轴
右侧抛物线上的一动点,过点
作直线
,
分别交对称轴
于点
,
,当
时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ceba6b11658f2cc227b1f550ba25c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbdef5d0c05acbf63fa72fa85c5bb45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/16/7af1d520-0182-40d3-948d-b4c1d620a58d.png?resizew=323)
(1)直接写出该抛物线的表达式;
(2)设抛物线的顶点为
![](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/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fa5b7ee3c02add5668fcdfd13e4b6f.png)
(3)如图2,抛物线的对称轴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/7d545fc0123fb0837c0013dbea61ff9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,等腰三角形ABC中,P为底边BC上任意点,过P作两腰的平行线分别与AB,AC相交于Q,R两点,又P′是P关于直线RQ的对称点,证明:P′在△ABC的外接圆上.
![](https://img.xkw.com/dksih/QBM/2018/8/30/2021615691931648/2023801524985856/STEM/a70fe72561f34a7b821b8ecb4a7f236e.png?resizew=172)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,在Rt△ABC中,∠ACB=90°,以AC为直径的⊙O与AB边交于点D,过点D作⊙O的切线,交BC于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/95fb9990-3f92-43e0-8ee7-74d50cd02245.png?resizew=193)
(1)求证:BE=CE;
(2)填空:
①若∠B=30°,AC=4,则△BDE的面积= ;
②当∠B= 度时,以O,D,B,E为顶点的四边形是平行四边形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/95fb9990-3f92-43e0-8ee7-74d50cd02245.png?resizew=193)
(1)求证:BE=CE;
(2)填空:
①若∠B=30°,AC=4,则△BDE的面积= ;
②当∠B= 度时,以O,D,B,E为顶点的四边形是平行四边形.
您最近一年使用:0次