Question

which angle is complementary to ∠4?

Explanation:

Step1: Recall complementary - angle definition

Two angles are complementary if their sum is 90 degrees.

Step2: Analyze the figure

In the given figure, if we assume the right - angle formed by the intersection of lines, and observe the angles around the intersection point. We can see that ∠4 and ∠3 together form a right - angle.

Answer:

∠3