i need help with this

Answer:(a) = 37π/180 radians(b) = 37°Step-by-step explanation:Converting km/h ⇒ m/s :⇒ 54 km/h x 5/18⇒ 3 x 5⇒ 15 m/s===============================================================Formula to calculate the angle :⇒ tanθ = v/r⇒ tanθ = (15 m/s)/(20 m)⇒ θ = tan⁻¹ (0.75)⇒ θ = 37°=============================================================Converting to radians :⇒ Radian measure = Angle measure × π/180°⇒ Radian measure = 37° × π/180°⇒ Radian measure = 37π/180 radians=============================================================Solutions :(a) = 37π/180 radians(b) = 37°