Question

reveal math - geometry > identify complementary and supplementary angles 97a
which angle is complementary to ∠3?
∠4 ∠2 ∠1 ∠5
submit work it out

Explanation:

Step1: Recall complementary angles definition

Two angles are complementary if their sum is 90 degrees. In a right - angled intersection of lines, adjacent non - overlapping angles that make up a right angle are complementary.

Step2: Analyze the given angles

From the figure, ∠3 and ∠4 together form a right angle.

Answer:

∠4