Question

which angle is complementary to ∠2?

Explanation:

Step1: Recall complementary angles

Two angles are complementary if their sum is 90 degrees. In a right - angled intersection of lines (assuming the relevant angles are part of a right - angle situation here), we look for an angle that with ∠2 makes 90 degrees.

Step2: Identify the angle

From the figure, we can see that ∠2 and ∠5 together form a right - angle. So, ∠2+∠5 = 90 degrees.

Answer:

∠5