I need help please I’m stuck

Answer:
x + 90 + 63 = 180
Step-by-step explanation:
∠A + ∠B + 45 + 63 = 180 {Straight line angles}
From the figure we know that , ∠B + 45 = 90
Therefore, ∠A + 90 + 63 = 180
Answer:
Option B is correct.
Step-by-step explanation:
∠A = 27
27 + 90 + 63 = 180
you can see that square right. the square is 90.
Have a nice day!