問題詳情
20.若正△ABC邊長為100，則其內切圓面積：外接圓面積＝？
(A) 1:1
(B) 1:2
(C) 1:4
(D) 1:8 。
(A) 1:1
(B) 1:2
(C) 1:4
(D) 1:8 。
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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