問題詳情
7.用總長度 38 公尺的鐵絲要沿著筆直河岸圍出一塊長方形土地，若沿河岸的一邊不圍，則所圍成之長方形土地的最大面積為 ____________平方公尺。
參考答案
答案：C
難度：非常簡單0.976235
統計：A(22),B(54),C(3163),D(1),E(0)
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