Answer:
Step-by-step explanation:
We need to find the measure of angle B. Notice that it's a right triangle, where we already know the hypothenuse and the adjacent leg to the angle, that means we need to use the cosine trigonometric reason
[tex]cosB=\frac{adjacent}{hypothenuse}=\frac{20}{29}\\ B=cos^{-1}(\frac{20}{29}) \\B \approx 46.4 \°[/tex]
Therefore, the measure of angle B is 46.4°, approximately.
