問題詳情
4.如圖(二),兩同心圓的圓心為 O。已知兩圓的半徑分別為 8,且∠AOB=∠COD=120°,
大雄說: 弧度=
弧度,
胖虎說:弧長,則下列何者正確
(A) 大雄對胖虎錯
(B) 大雄錯胖虎對
(C)大雄、胖虎都對
(D) 大雄、胖虎都錯
參考答案
無參考答案
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