I have 2 questions...
A cow is tethered by a 130-ft rope to the inside corner of an L-shaped building, as shown in the figure. Find the area that the cow can graze. (Round your answer to the nearest whole number.) Assume a = 10 ft, b = 40 ft, c = 130 ft, d = 50 ft, e = 90 ft.

Town A and Town B lie approximately on the same meridian. Town A has latitude 60? N and Town B,55? N. Find the distance between these two cities. (The radius of the Earth is 3960 miles.) (Round your answer to the nearest whole number.)


I am stuck in my trig class and i don't know what to do. can you folks help me out
here's a pic of the problem

http://a3.sphotos.ak.fbcdn.net/hphotos-ak-snc7/305140_2025981057833_1493245314_31684806_103854057 4_n.jpg