Question

矩形具有而菱形不一定具有的性質(zhì)是              (     )

  A．對(duì)角線互相垂直B．對(duì)角線相等C．對(duì)角線互相平分D．對(duì)角互補(bǔ)

 

Answer 1

B 

解析:矩形的性質(zhì)有：①矩形的對(duì)邊相等且平行，②矩形的對(duì)角相等，且都是直角，③矩形的對(duì)角線互相平分、相等；菱形的性質(zhì)有：①菱形的四條邊都相等，且對(duì)邊平行，②菱形的對(duì)角相等，③菱形的對(duì)角線互相平分、垂直，且每一條對(duì)角線平分一組對(duì)角；∴矩形具有而菱形不一定具有的性質(zhì)是對(duì)角線相等，故選不B．