Răspuns :
x-latimea
x+2- lungimea
(x+x+2)x2=172
2x+2=172:2
2x+2=86
2x=86-2
2x=84
x=84:2
x=42
latimea =42
lungimea = 44
x+2- lungimea
(x+x+2)x2=172
2x+2=172:2
2x+2=86
2x=86-2
2x=84
x=84:2
x=42
latimea =42
lungimea = 44