a + b + c = 176
b = c + 28
a = b - c
b - c = 28 = a
a = 28
b + c = 176 -28
b + c = 148
b |____|+28
c |____|
avem 2 segmente egale +28 = 148
148 - 28 = 120
120 : 2 = 60 (un segment egal)
b = 60 + 28 = 88
c = 60
Verificare:
28 + 88 + 60 = 176
Raspuns:
a = 28
b = 88
c = 60