如图所示,点
为
外一点,过点
作
的切线
,
,点
,
为切点,连接
并延长,交
的延长线于点
,过点
作
,交
的延长线于点
已知
,
,则
的长为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199c669617c6b37dca8d5fc57f6bcd18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e7170bb4a2ddcef39391a06c989162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19f0fcacac715a1200770516d1e4a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/26/4cfd164d-8082-45f8-8162-26f1dd230ca8.png?resizew=143)
22-23九年级上·全国·单元测试 查看更多[4]
京改版九年级数学上册第22章 圆(下) 单元测试卷(已下线)24.2+与圆有关的位置关系(题型精讲精练)2(原卷版)(已下线)24.2+与圆有关的位置关系(题型精讲精练)1(原卷版)(已下线)2023湖南省衡阳市中考数学变式题13-18题
更新时间:2023-05-14 12:00:14
|
相似题推荐
填空题
|
适中
(0.65)
名校
【推荐1】如图,长方形
中,
,
,点
是
边上任一点,连接
,把
沿
折叠,使点
落在点
处,当
的长为___________ 时,
恰好为直角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5326817f9af012432a202749d1df59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2452627c4f1e58eaa74484d85feccd5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/14eef29e-900a-4856-8d62-85337ea4c538.png?resizew=155)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,在平行四边形ABCD中,AD=4,CD=6,过点D作DE⊥AB,垂足为E,连接CE,F为线段CE上一点,且∠DFE=∠A.若DF=
,则DE的长为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978c88c6185d871a7732946218677384.png)
![](https://img.xkw.com/dksih/QBM/2021/4/23/2705900713050112/2706590947459072/STEM/af62c72c6d6f4bb38c49d0cb81c06e4e.png?resizew=194)
您最近一年使用:0次
填空题
|
适中
(0.65)
真题
【推荐1】如图,边长为4的正方形ABCD外切于⊙O,切点分别为E、F、G、H.则图中阴影部分的面积为______ .
您最近一年使用:0次
填空题
|
适中
(0.65)
真题
【推荐2】如图,AB为⊙O的直径,延长AB至点D,使BD=OB,DC切⊙O于点C,点B是
的中点,弦CF交AB于点E,若⊙O的半径为2,则CF=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44635d621f25efe7ae6cd574ac480212.png)
![](https://img.xkw.com/dksih/QBM/2015/8/5/1573892473987072/1573892479401984/STEM/6678e32f60a749ea93ebb15d4665fae4.png?resizew=202)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】如图,所示,从⊙O外一点P引⊙O的两条切线PA,PB,切点分别是A,B.若PA=8 cm,C是弧AB上的一个动点(点C与A,B两点不重合),过点C作⊙O的切线,分别交PA,PB于点D,E,则△PED的周长是________ cm.
![](https://img.xkw.com/dksih/QBM/2018/6/10/1963872322551808/1968072030003201/STEM/bf75c2f8cbd4496ba485fe75847534f0.png?resizew=100)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】如图,⊙O是Rt△ABC的内切圆,∠C=90°,AO的延长线交BC于点D,若AC=6,CD=2,则⊙O的半径_____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/16/a2b57e64-3419-4f3a-ba84-741230ca1e73.png?resizew=214)
您最近一年使用:0次