I need help solving this question please

Question

Two planes take off at the same time from an airport. The first plane is flying at  miles per hour on a course of . The second plane is flying in the direction of  at  miles per hour. Assuming there are no wind currents blowing, how far apart are they after  hours? Round your answer to the nearest mile.

_____ miles

Answer 1

Draw and label a diagram!

The angle between the two planes is 25°

Use the Law of Cosines

d² = [3(293)]² + [3(251)]² - 2(3(293))(3(251)) cos 25°