A pilot flies her route in two stright-line segments.The displacement vector A for the first segment has a magnitude of 249 km at a direction of 30 degress north of east. The displacment vector forthe secpnd segment has a magnitude of 171km and a direction due west. The resultant displacement vector is R=A+B and makes the angle with the direction due east. Using the component method find (a) the magnitude of R and (b) the directional angle.