Need to find and store angles between vectors for given a set of points

Hi,

I would like to follow up on my previous questions to MattJ:

I now need to find and store the angles between the vectors made by the given points contained within two variables (i.e, Triplets, and F_points). If the angles from each F_point to each of the points in the corresponding Triples set are not all 120 degrees, then I need to initiate an action (i.e. reverse the direction which the angles are calculated for that particular set--perhaps by using the cross-product?). Please see attached code. Thanks in advance for any help you could offer.

Best,

Steve