Assume a 2D plane and both the birds start at origin. +X is east, -X is west, +Y is North, -Y is South. So, after travel position of bird1 is (-2.8, 2.7) and bird2 is (-2.7,2.8); slope of bird1 is 2.8/2.7 slope of bird2 is 2.7/2/8 Now we have two solpes b1 and b2 formula = (b2-b1)/(1+b1*b2);
The angle between the net displacement vectors of the two birds is approximately 7.2°. This is calculated using the dot product of the displacement vectors to find the cosine of the angle. The displacement vectors were established from the birds' respective movements in a 2D plane.
;