Question

which angle is complementary to ∠3?

Explanation:

Step1: Recall the definition of complementary angles

Complementary angles are two angles whose sum is \(90^{\circ}\).

Step2: Analyze the given angles

From the diagram, \(\angle1 = 90^{\circ}\), and \(\angle1=\angle2+\angle3\) (because of the angle - composition).

Answer:

\(\angle2\)