Answer:
x = 120°, y = 60°, z = 60°
Step-by-step explanation:
[tex]60 \degree + x = 180 \degree \\ ..(straight \: line \: \angle s) \\ x = 180 \degree - 60 \degree \\ x = 120 \degree \\ \\ x + y = 180 \degree \\ (interior \: \angle \: postulate) \\ 120 \degree + y = 180 \degree \\ y = 180 \degree - 120 \degree \\ y = 60 \degree \\ \\ z = 180 \degree -( 60 + 60) \degree \\ z = 180 \degree -120 \degree \\ z = 60 \degree [/tex]
