
5. 
You are following a compass course, where you are given instructions to get from a starting point to a finishing point by walking certain distances in certain directions using a compass. At the beginning of the course, the directions say to walk 50 ft at 30° to reach a big oak tree. Later, you realize that you are only 70 ft away from the starting point, at an angle of 120°. How far are you from the big oak tree? 