Question

angles formed by a transversal
angles 3 and 6 are:
vertical angles
a linear pair
corresponding angles
alternate interior angles
alternate exterior angles
consecutive interior angles

Explanation:

Alternate interior angles are formed when a transversal crosses two lines. They are non - adjacent and lie between the two lines, on opposite sides of the transversal. In the given diagram, angles 3 and 6 fit this description.
Vertical angles are opposite each other when two lines intersect. A linear pair are adjacent angles that form a straight line. Corresponding angles are in the same relative position. Alternate exterior angles are outside the two lines. Consecutive interior angles are on the same side of the transversal between the two lines.

Answer:

alternate interior angles