Question

angle a =90° +angleB=90°​

Answer 1

Answer:

$ab = {90}^{0} + {90}^{0} \\ ab = {180}^{0}$

the angle will be 180°

I hope it help you.........

Answer 2

Answer:

I am sorry but can you please explain your question in detail.....

bcz it's just a simple addition

90° + 90° = 180°

Straight angle