Helloooo ...
Can someone kindly direct me ...
I have 3 points in an x,y,z plane. and I would like to calculate (in degrees) the angle between the 2 lines formed by these.
Example:
point A: 3,5,7
point B: 5,6,1
point C: 9,9,4
how can i measure the angle between A-B (line) and B-C (line)?
or in other words, how to implement calculating angles between vectors in 3-D coordinates in excel?
Thank you
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