Răspuns :
2x- 2 + 2x + 2x + 2 = 24 6x = 24 x = 4
AB = 6cm BC = 8cm CA = 10cm
AB = 6cm BC = 8cm CA = 10cm
P=n +n+1+n+2=24;
3n+3=24;
3n=21;
n=7 rezulta ca n+1=8 si n+2=9.
Deci numerele sun 7,8,9