The Law of Cosines, Example 4. Here we use the law of cosines to help deduce an angle between the flightpath of two planes!
Law of Cosines, Example SSS is a free educational video by PatrickJMT.It helps students in grades 9,10,11,12 practice the following standards HSG.SRT.D.11.
1. HSG.SRT.D.11 : Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and non-right triangles (e.g., surveying problems, resultant forces)..