Question

calcule a medida dos angulos indicados:

a)

Answer 1

x/3 - 8 = x/5
x/3 - x/5 = 8
5x/15 - 3x/15 = 8
2x/15 = 8
x = 8 . 15/2
x = 60

x/3 - 8 = 60/3 - 8 = 20 - 8 = 12
x/5 = 60 /5 = 12