Question

find the measure of each marked angle in the following figure​

Answer 1

x=70

y=130

z=45

may it help you

Answer 2

130° + x = 180°  [Linear Pair]

⇒ x = 180° - 130°

⇒ x = 50°

x + y = 180°  [Linear Pair]

⇒ 50° + y = 180°

⇒ y = 180° - 50°

⇒ y = 130°

z = 45°  [Vertically Opposite Angles]