Question

in the following figures, determine the value of x and y​

Answer 1

Answer:

By using linear pair we can find that,

On the right side of the triangle

165 + a = 180

a = 15

On the left side of the triangle

110 + b = 180

b = 70

Now, a + b = x as sum of interior angles is equal to the opposite's exterior angle.

x = 70 + 15

x = 85