Question

13- Qual o valor de y na figura?
X+Y
X
150°
a) 100°
b) 105°
c) 110°
d) 120°
e) 125°
​

Answer 1

150+x = 180

x = 180-150

x= 30

x+x+y = 180

2x+y=180

2.30+y=180

60+y=180

y=180-60

y=120

resposta D