Answer:
Step-by-step explanation:
sin A = [tex]\frac{a}{c}[/tex]
sin 9.4° = [tex]\frac{20.5}{c}[/tex] ⇒ c = (20.5) / (sin 9.4°) ≈ 125.52
tan A = [tex]\frac{a}{b}[/tex]
tan 9.4° = [tex]\frac{20.5}{b}[/tex] ⇒ b = (20.5) / (tan9.4°) ≈ 123.83
m∠B = 90° - 9.4° = 80.6°
m∠C = 90°
