In the given diagram, ∠O|OB and ∠OO|Q are called ________.
interior angles on the same side of the transversal
We can identify the interior angles on the same side of the transversal by remembering that it appears on the same side of the transversal and in the interior side of the other two lines.
If the transversal intersects a pair of parallel lines, then, interior angles on the same side of the transversal form a linear pair.