Question

CALCULE O VALOR DOS ÂNGULOS

Answer 1

x + 30 + 120 = 180
x + 150 = 180
x = 180 - 150
x = 30
Angulo 60° e 120°

x + 20 = 2x + 10
x - 2x = 10 - 20
-x = -10 (.-1)
x = 10
Angulos 30°