AOB = BOC x 2
AOB = AOC - 40
=> AOB + 40 = AOC
=> BOC x 2 + 40 = AOC
AOB + BOC + AOC = 360
=> BOC x 2 + BOC + BOC x 2 + 40 = 360
=> BOC x 5 = 360 - 40
=> BOC x 5 = 320
=> BOC = 320/5
=> BOC = 64
=> AOB = 64 x 2
=> AOB = 128
=> AOC = 128 + 40
=> AOC = 168
Sper ca te-am ajutat :)