u/Claritytutor

https://preview.redd.it/pfgh4lcp281h1.png?width=781&format=png&auto=webp&s=10b885d63b0b6615cd8bd0d48b2c32de335ad24d

I get how to find the angle between the lines from the formula but not understanding what this angle represents as the lines are skew so their not even touching so how is their an angle between them. Any help understanding is apprecitated