1 . 如图,两个同心圆,大圆半径为5cm,小圆的半径为4cm,若大圆的弦AB与小圆有两个公共点,则AB的取值范围是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/2/af5aac78-3a8d-4ad4-93b0-db9ad266107f.png?resizew=156)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/2/af5aac78-3a8d-4ad4-93b0-db9ad266107f.png?resizew=156)
A.4<AB<5 | B.6<AB<10 | C.6≤AB<10 | D.6<AB≤10 |
您最近一年使用:0次
2018-11-17更新
|
167次组卷
|
2卷引用:冀教版九年级下册第二十九章 直线与圆的位置关系单元测试数学试题
2 . 如图所示,PA是⊙O的切线,切点为A,PA=2
,∠APO=30°,则⊙O的半径为( )
![](https://img.xkw.com/dksih/QBM/2018/11/2/2066899827499008/2067767636402177/STEM/37848c3d4b9940a9a5053a4d549dea79.png?resizew=92)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2018/11/2/2066899827499008/2067767636402177/STEM/37848c3d4b9940a9a5053a4d549dea79.png?resizew=92)
A.4 | B.2 ![]() |
C.2 | D.3 |
您最近一年使用:0次
2018-11-03更新
|
159次组卷
|
2卷引用:冀教版九年级下册第二十九章 直线与圆的位置关系单元测试数学试题
3 . 如图,⊙
与
的三边分别切于点
、
、
,
,
,
是
上的动点(与
、
不重合),
的度数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0374c406b563f0d258aa5c2654bbd06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998329f9cdb86f5d60d7d5d70fc3781e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327a83a4de41e6848a1c0df3f1d738f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3b8144f5664421e3c2d3cff9e5e483.png)
![](https://img.xkw.com/dksih/QBM/2018/3/13/1901099853799424/1905493125709824/STEM/dbaf323d89f54d59ac2151966e707e27.png?resizew=162)
您最近一年使用:0次
2018-03-19更新
|
243次组卷
|
2卷引用:冀教版九年级下册第二十九章 直线与圆的位置关系单元测试数学试题
4 . 如图,⊙O内切Rt△ABC,切点分别是D、E、F,则四边形OECF是_______ .
![](https://img.xkw.com/dksih/QBM/2011/1/5/1574152649523200/1574152719163392/STEM/9c934d94-e3b6-484a-9762-1b626088c68f.png?resizew=126)
您最近一年使用:0次
2016-12-06更新
|
260次组卷
|
3卷引用:浙教版九年级下册第二章直线与圆的位置关系单元测试数学试题
5 . 如图,半径为
cm的⊙O从斜坡上的A点处沿斜坡滚动到平地上的C点处,已知∠ABC=120°,AB=10cm,BC=20cm,那么圆心O运动所经过的路径长度为( )
![](https://img.xkw.com/dksih/QBM/2013/6/3/1573659549745152/1573659556028416/STEM/5cb617245e8c490981e31eb70bbe9431.png?resizew=197)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
![](https://img.xkw.com/dksih/QBM/2013/6/3/1573659549745152/1573659556028416/STEM/5cb617245e8c490981e31eb70bbe9431.png?resizew=197)
A.30 cm | B.29 cm | C.28 cm | D.![]() |
您最近一年使用:0次
2016-12-05更新
|
1212次组卷
|
3卷引用:浙教版九年级下册第二章直线与圆的位置关系单元测试数学试题