Question

which angle is complementary to ∠4? ∠2 ∠1 ∠5 ∠3

Explanation:

Step1: Recall complementary - angle definition

Two angles are complementary if their sum is 90 degrees. In the given figure, there is a right - angle formed where ∠4 and ∠5 are adjacent angles that together make up a right - angle.

Step2: Determine the complementary angle

Since ∠4+∠5 = 90° (because they form a right - angle), ∠5 is complementary to ∠4.

Answer:

∠5