問題詳情
1.如圖一,已知
的長度為 8,
的長度為 6,圓 O的半徑為 10,且∠AO1B=∠CO2D,求圓 O的半徑。
(A)
(B)
(C)
(D)



(A)

(B)

(C)

(D)


參考答案
答案:B
難度:適中0.5
統計:A(0),B(3),C(0),D(0),E(0)
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