Question

when we use complementary degrees. in English ​

Answer 1

Answer:

Two Angles are Complementary when they add up to 90 degrees (a Right Angle). They don't have to be next to each other, just so long as the total is 90 degrees. Examples: 60° and 30° are complementary angles.

Answer 2

Answer:

if we have to compare anything

I hope it's easy to understand