题目
题型:不详难度:来源:
AC |
BC |
AD |
BD |
![魔方格](http://img.shitiku.com.cn/uploads/allimg/20191107/20191107231527-60461.png)
答案
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AC |
AD |
AP |
DP |
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BC |
DB |
BP |
DP |
又AP=BP,③
由①②③知:
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AD |
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BD |
故
AC |
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核心考点
试题【从⊙O外一点P引圆的两条切线PA,PB及一条割线PCD,A、B为切点.求证:ACBC=ADBD.】;主要考察你对相似三角形的判定及有关性质等知识点的理解。[详细]
举一反三
AC |
BC |
AD |
BD |
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AC |
AD |
AP |
DP |
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BC |
DB |
BP |
DP |
AC |
AD |
BC |
BD |
AC |
BC |
AD |
BD |