Find Angles in Triangle Given Points | Calculus 3

Find the three angles in a triangles given three points on a graph.
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[@MaxSharpy]

I haven't done this in 20years, noice refresher, ty very much!

[@Ibrokhimsharipov]

Very Helpful, easy to understand.

[@letsbegin_staytrue]

thanks .. i can use this in solving convex hull problem...dot product is the keyyyy to universe..

[@yehudab5731]

Very helpful, thanks

[@knowledgetv9278]

very nice video. thanks. keep it up

[@doofwolf1474]

Thanks (:

[@stevenmwangalasuzzy3590]

I'm confused, can we use cross product formula also to determine the angles?? I used it ,but the answers are different ,am now confused .....?? Please help