Question

In this figure, ∠a and ∠b are 15 points here

Answer 1

a and b would be supplementary angles

Answer 2

Complimentary angles are multiple angles side by side that equal 90*. Supplementary angles are multiple angles side by side that equal 180*.
So, the correct answer is Supplementary angels because angles A and B equal a sum of 180*.
Hope this helps!