Question

1. linear pair vertical alternate exterior alternate interior same - side interior corresponding

Explanation:

A linear pair of angles is formed when two adjacent angles are supplementary (sum to \(180^{\circ}\)) and share a common side. Vertical angles are opposite angles formed by the intersection of two lines. Alternate exterior angles are on opposite sides of a transversal and outside the two lines. Alternate interior angles are on opposite sides of a transversal and inside the two lines. Same - side interior angles are on the same side of a transversal and inside the two lines. Corresponding angles are in the same relative position. In the given diagram, \(x\) and \(y\) are adjacent and supplementary (form a straight line), so they are a linear pair.

Answer:

linear pair