Answer:
A
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosA = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{2}{3}[/tex] , thus
A = [tex]cos^{-1}[/tex] ([tex]\frac{2}{3}[/tex] ) ≈ 48° → A
