Question

which angles are complementary to each other? ∠4 and ∠3 ∠4 and ∠1 ∠2 and ∠1 ∠2 and ∠3

Explanation:

Step1: Recall complementary - angle definition

Two angles are complementary if their sum is 90 degrees.

Step2: Analyze the given angles

From the figure, we can see that $\angle2+\angle3$ forms a right - angle (90 degrees).

Answer:

$\angle2$ and $\angle3$