Question

determine o valor de x

Answer 1

A soma dos angulos deve valer 360° (circunferencia completa), logo:

a)

x + 50 = 360°

x = 360° - 50°

x = 310°

b)

140° + x + (3x - 10°) + (x+30°) = 360°

5x + 160° = 360°

5x = 200°

x = 200°/5

x = 40°