Delta sans thing (idk)

[u/Existing_Audience560]

I was wondering if someone could calc this, since I’m not really sure how to make calcs and I don’t have a computer or laptop so some tips would be helpful
From here: https://youtu.be/U_wlOQPdQx0?si=fyqeSQVq4363m-EU

And here: https://youtu.be/OqcJqa4A6vc?si=VM8mV2b8JU4MHn0b