Answer:
∠1 and ∠2, ∠4 and ∠5
Step-by-step explanation:
Angles 1 and 2 form a right angle, which is worth 90°, and likewise with angles 4 and 5. Complementary angles are worth 90° and are usually adjacent to each other.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
