如图,PA,PB分别切半径为1的⊙O于A,B两点,BC为直径,若
,则PB的长为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae589f647c8864f89d5610fb28158315.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/a5358767-02c7-45b5-b307-bf7fd511d06d.png?resizew=183)
2022·北京海淀·一模 查看更多[2]
北京市海淀区十一学校一分校2021-2022学年九年级下学期3月月考数学试题(一模)(已下线)专题11 三角形基础(含等腰三角形、勾股定理)——5年(2018~2022)中考1年模拟数学分项汇编(北京专用)
更新时间:2022-04-22 17:01:14
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【推荐2】如图,在梯形ABCD中,AB∥CD,
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【推荐1】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
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