問題詳情
68.△ABC 中,∠B=90°。將 A 點沿 AB 邊對折到 B 點,C 點沿 CB 邊對折到 B 點後,形成一個四邊形。則關於此四邊形,下列何者敘述正確?
(A)此四邊形為正方形
(B)此四邊形對角線互相垂直
(C)此四邊形面積為△ABC 面積之一半
(D)此四邊形周長為△ABC 周長之一半CD
(A)此四邊形為正方形
(B)此四邊形對角線互相垂直
(C)此四邊形面積為△ABC 面積之一半
(D)此四邊形周長為△ABC 周長之一半CD
參考答案
答案:C
難度:適中0.660098
統計:A(5),B(25),C(134),D(21),E(0)
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