Angles are numbered 1–6. Which angle number is complementary and adjacent to ∠5?

To find the angle that is complementary and adjacent to angle ∠5, we need to determine the angle that, when combined with ∠5, adds up to 90 degrees and shares a side with it.

Looking at the list of angles, we see that angle ∠4 is adjacent to ∠5.

To check if ∠4 is complementary to ∠5, we need to add their measures together. If the sum is equal to 90 degrees, then ∠4 is complementary to ∠5.

However, we are not given the measures of these angles, so we cannot determine their sum. Hence, we cannot definitively identify the angle number that is complementary and adjacent to ∠5 without further information.