Răspuns :
A + B + B + C + C + A = 113 + 130 + 147
2(A + B + C) = 390
A + B + C = 195
A + B = 113 => C = 195 - 113 = 82
B + C = 130 => A = 195 - 130 = 65
A + C = 147 => B = 195 - 147 = 48
A + B + B + C + C + A = 113 + 130 + 147
2(A + B + C) = 390
A + B + C = 195
A + B = 113 => C = 195 - 113 = 82
B + C = 130 => A = 195 - 130 = 65
A + C = 147 => B = 195 - 147 = 48