Use trigonometry ratio to solve the problem, the ratio we use is tan ratio
tan α = [tex] \dfrac{\text{opposite}}{\text{adjacent}} [/tex]
plug in the numbers to find α
tan α = [tex] \dfrac{\text{opposite}}{\text{adjacent}} [/tex]
tan α = [tex]\dfrac{500}{400} [/tex]
tan α = [tex] \dfrac{5}{4} [/tex]
tan α = 1.25
α = tan⁻¹ (1.25)
α = 51.340...
α = 51.3
The answer is second option
