Question

Two parallel lines are crossed by a transversal.

What is the value of y?

y = 40
y = 80
y = 100
y = 120

Answer 1

Answer: The value of y in the two parallels crossed by the transversal is 80

Second option: y=80

Solution:

In the graph we have two parallel lines (b and c), and they are crossed by a transversal (a). The angles y° and 80° are alternate exterior angles, and they must be congruent:

y°=80°

y=80

Answer 2

y would be 80...because alternate exterior angles are equivalent