Question

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

Answer 1

  The value of a is the same as the value of any other corresponding angle, or an angle that's in the same position as "a". There is only one other corresponding angle in the diagram, which is the value of a, as corresponding angles have the same value.

Answer 2

For this case, the first thing to do is to observe that the angle between line f and line h equals 63 degrees.
Then, since line f is parallel to line g, then the angle between line h and line g is equal to the angle between line h and line f.
Therefore, we have to:
a = 63º

Answer:

the value of a is:

a = 63º