Question

Find the value of X and Y. ​

Answer 1

a. y = 60° [vertically opposite angles]

x = 180° - 60° / 2 [angle sum property]

x = 120° / 2

x = 60°

b. x = 180° - 110° [linear pair]

x = 70°

y = 180° - (70° + 40°)

[linear pair & angle sum property]

y = 180° - 110°

y = 70°