Two separate seismograph stations receive indication of an earthquake in the form of a wave traveling to them in a straight line from the epicenter and shaking the ground at their locations. Station B is 50 km due east of station A. The epicenter is located due north of station A and 30o north of due west from station B.
(a) Draw a sketch and use it to determine the distance from the epicenter to A.
(b) Determine the distance from the epicenter to B.
(c) Station C is located an additional 20 km east of B. At what angle does C report the direction of the epicenter to be?