Respuesta :

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

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