### Home > INT3 > Chapter 11 > Lesson 11.1.1 > Problem 11-12

11-12.

A plane is currently 250 miles from its destination. If it continues on its current course, it will travel another 300 miles and end up 75 miles away from its destination. What adjustment does the plane need to make in its course direction to arrive at its destination? Homework Help ✎

Draw a triangle.

Use the Law of Cosines.

The plane needs to change its course 11.72º.