Răspuns :
a+b+c=84
a=un segment
b=un segment+1
c=un segment+1+1
84-3=81
81:3=27
a=27
b=28
b=29
a=un segment
b=un segment+1
c=un segment+1+1
84-3=81
81:3=27
a=27
b=28
b=29
1: I-----------I 2: I-----------I-1-I 3: I-----------I-1-I-1I nr1 + nr2 + nr3 = 84 egalam partile: 84-1-1-1 =81 3X nr1 = 81 nr1= 81:3= 27 nr2 = 27+1= 28 nr3=28+1=29 27+28+29= 55+29= 84 Sper sa o intelegi!