問題詳情
4.下列敘述何者正確？
(A)矩形必有內切圓
(B)平行四邊形必有外接圓
(C)任意多邊形必有重心
(D)鈍角三角形的外心必三角形的邊上。
(A)矩形必有內切圓
(B)平行四邊形必有外接圓
(C)任意多邊形必有重心
(D)鈍角三角形的外心必三角形的邊上。
參考答案
無參考答案
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