a) Latura=25m
diagonala patratului = L[tex]\sqrt{2}[/tex] = 25[tex]\sqrt{2}[/tex]=35,35m
b)Perimetrul=56m
Perimetrul patratului= 4*L
=>56m=4*L
=>L=56/4
L=14
diagonala patratului = L[tex]\sqrt{2}[/tex] = 14[tex]\sqrt{2}[/tex]=19,79m
c)Aria=81m^2
Aria=L^2
=> 81m^2=L^2=> L=[tex]\sqrt{81}[/tex]=9
diagonala patratului = L[tex]\sqrt{2}[/tex] = 9[tex]\sqrt{2}[/tex]=12,72m
