問題詳情
8.如下圖(三),圓O1和圓O2外切, 
是圓O1和圓O2的外公切線，且A、B是切點,又 
相交於P點若圓O1和圓O2的半徑分別為12和18,則 
=?
(A) 88
(B) 90
(C)92
(D)94
參考答案
無參考答案
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