Question

Two parallel lines are crossed by a transversal What is the value of y?
help me

Answer 1

Y is 80 because 80 any y are alternate interior angles

Answer 2

Value of y is 80°

Explanation:

Given: Line a and b are parallel.

line a is traversal.

To find: Value of y.

Construction : mark ∠1

Figure is attached.

∠1 = 80° ( vertically opposite angles are equal )

Now,

We know that when lines are parallel then the corresponding angles formed by them and traversal are equal.

y = ∠1

⇒ y = 80°

Therefore, Value of y is 80°