問題詳情
8. ( )如（乙）圖，正五邊形 ABCDE 及正六邊形 BFGHIJ邊長皆為 2，且點 A、B、F 在同一條直線上，則∠BJC為多少度?
(A) 66 °
(B)68°
(C) 62°
(D) 60° 
參考答案
無參考答案
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