Răspuns:
Explicație pas cu pas:
a)95cm-63cm+150cm=32cm+150cm=182cm
b250cm+750cm-100cm=900cm
3) L=34m.
Aria =[tex]L^{2}[/tex]=34*34=1156 [tex]m^{2}[/tex]
perimetrul =4L=4*34=136
5)L=25m
l=20m
perimetrul=2L+2l=2*25+2*20=50+40=90m de sarma
aria =L*l=25*20=500[tex]m^{2}[/tex]