Question

Helpppppppppp me pls

Answer 1

39°

Explanation:

Angle 1 and angle 2 form a right angle ( see that little symbol inside the corner?) .... a right angle is 90°

51 + angle 2 = 90

angle 2 = 90 - 51 = 39°

Answer 2

39

Explanation:

Because this is a right angle, and right angles are ALWAYS 90 degrees. In this case, a is 51 degrees, so what's b? Well, all you need to do is to minus 51 from 90, which equals 39. So, b is 39 degrees.