Răspuns :
Nu este patrat perfect
Cateva patrate perfecte 1,4,9,16,25,36,49,64,81,100,121,144,169,196,225,256,289,324,361
Cateva patrate perfecte 1,4,9,16,25,36,49,64,81,100,121,144,169,196,225,256,289,324,361