A hiker walks from
(x1, y1) = (−3.60 km, 3.25 km) to (x2, y2) = (3.05 km, 5.90 km). (Take east to lie along the positive x-axis and north to lie along the positive y-axis.)

(a) What distance has he traveled? (Assume the hiker walked in a straight line.)
(b) The hiker desires to return to his starting point. In what direction should he go? (Give the angle with respect to due east. Enter an angle between 0° and 360°.)