問題詳情
18.圓錐的側面積及底面積和為70π,
=9 則此圓錐底面圓的半徑
為?
(A) 5
(B) 6
(C) 7
(D) 8


(A) 5
(B) 6
(C) 7
(D) 8

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