Looking at the given right angle triangle, c represents hypotenuse
With angle B as the reference angle, the adjacent side is a.
To determine angle B, we would apply the cosine trigonometric ratio which is expressed as
Cos B = adjacent side/ hypotenuse
Given that a = 2.2 and c = 3.2,
Cos B = 2.2/3.2 = 0.6875
angle B = Cos^(- 1) (0.6875)
angle B = 46.6 degrees to the nearest tenth