如图,AB是⊙O的直径,AD是⊙O的切线,点C在⊙O上,BC∥OD,AB=2,OD=3.
(1)求证:ΔACB∽ΔDAO.
(2)求BC的长.
(1)求证:ΔACB∽ΔDAO.
(2)求BC的长.
![](https://img.xkw.com/dksih/QBM/2018/4/22/1929470388305920/1930322952585216/STEM/d900edb763844e0f85fa57d7d68a14a0.png?resizew=172)
更新时间:2018-04-23 15:55:00
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【知识点】 相似三角形的判定与性质综合
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【推荐1】如图,直线
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【推荐2】如图,在
中,
,
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,
、
分别是
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;同时,点
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方向匀速运动,速度为
,当点
停止运动时,点
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