如图,AB、AC、BD是⊙O的切线,切点分别为P、C、D.若AB=8,AC=5,则BD的长是______ .
![](https://img.xkw.com/dksih/QBM/2021/11/13/2850642761654272/2851638719160320/STEM/79fd77d3-69fa-47c2-b277-0be368b7e00b.png)
更新时间:2021-11-15 08:16:44
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【推荐1】如图,PA,PB为⊙O的切线,A,B为切点,∠OAB=25°,则∠P=______ .
![](https://img.xkw.com/dksih/QBM/2021/2/24/2664996621705216/2670863008940032/STEM/f0e0f84e-d8c7-46bb-8027-e306a513c45f.png?resizew=200)
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【推荐2】如图,在
中,
,其内切圆分别与
相切于点D、E、F,若
,
,则
的长为______ .
![](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/0fcbceec52ae9468f15bc6846ad8c78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070bc896d35495237fd65576e9b6f88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620fd368efb51a5ae90c0f3e276704d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/839c0917-d30d-4c50-8648-54da73bdb44f.png?resizew=177)
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