Hi, any help with this question? i'm stuck on it

a = 70° [because vertically opposite angles are equal.]

c + 150° = 180° [They are linear pair]

=> c = 180° - 150°

=> c = 30°

a+b+c= 180° [Sum of all angles of a triangle=180°]

=> 70° + b + 30° = 180°

=> 100° + b = 180°

=> b = 180° - 100°

=> b = 80°

the answer is 0.3175 hope that you ^w^

also you might actually want to put this picture up if you want people to solve it luckily i remember this question