Question

what is an angle that is supplementary to ∠1?

Explanation:

Step1: Recall the definition of supplementary angles

Supplementary angles are two angles whose sum is \(180^{\circ}\).

Step2: Identify the angle adjacent to \(\angle1\)

From the diagram, \(\angle1\) and \(\angle2\) form a linear pair. A linear pair of angles is supplementary.

Answer:

\(\angle2\)