Question 608795
Flight 2412 takes of from SMF with a bearing of N15E at speed of 350 mph. Flight 813 takes off from an adjacent runway at the same time on a bearing of S40E at a speed of 400 mph.  what is the distance between the planes 90 minutes later?
-------------
The angle between their flight paths is 125 degrees
350*1.5 = 525 miles
400*1.5 = 600 miles
{{{d^2 = 525^2 + 600^2 - 2*525*600*cos(125)}}}