面積為1的正方形的對(duì)角線長為________．

對(duì)角線為1的正方形的邊長是________．

邊長為1的正方形對(duì)角線長為________．

正方形具有而菱形沒有的性質(zhì)是____________(只寫一個(gè)即可)．

把相應(yīng)的條件填在橫線上，

(1)_____________或__________________________．

(2)_____________或__________________________．

(3)_____________或__________________________．

(4)_____________或__________________________．

(5)_____________或__________________________．

對(duì)角線______________的菱形是正方形，

對(duì)角線______________的矩形是正方形．

對(duì)角線______________的平行四邊形是正方形．

對(duì)角線______________的四邊形是正方形．

__________的矩形是正方形．_________的菱形是正方形．________的平行四邊形是正方形．

正方形的對(duì)邊_________，鄰邊_________，對(duì)角線__________，每條對(duì)角線___________．

正方形是________相等的矩形，又是有一個(gè)角是________的菱形．

正方形具有________、________和________的所有性質(zhì)．