Two airplanes leave an airport at the same time. The angle between their paths (assume they fly in straight lines) is 79 degrees. If one plane is traveling at 300 mph and the other is traveling at 375 mph, how far apart are they after 2 hours?

a) Approximately 949 miles
b) Approximately 1191 miles
c) Approximately 1651 miles
d) Approximately 1861 miles