Answer:
see explanation
Step-by-step explanation:
(5)
Using the tangent ratio in the right triangle
tan ? = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{17}{30}[/tex], thus
? = [tex]tan^{-1}[/tex]([tex]\frac{17}{30}[/tex] ) ≈ 30° ( to the nearest degree )
(6)
Use any of the 3 trig ratios to solve.
Using the cosine ratio
cos ? = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{80}{82}[/tex], thus
? = [tex]cos^{-1}[/tex]([tex]\frac{80}{82}[/tex] ) ≈ 13° ( to the nearest degree )
