In the newest Haikyuu episode Lev and Hinata stand next to each other at a full body view, and so I thought “Hey! I had to learn Trigonometry for no reason in school! I should practice it here!” So I did! I decided to discern at what angle Lev has to look down at Hinata to make eye contact, and visa versa.
Using the heights given to us by the Wiki, I was able to discern the height difference of 12.2″. I had to estimate the distance between them, however when I was measuring it, it appeared to be around half the height of Hinata, so I went with that, 32″. Using the pythagorean theorem I found the Hypotenuse of the triangle. Then using inverse sin I calculated both of the other two inside angles.
Lev looks to Hinata at a 69.13087 degree angle
and Hinata in turn looks to Lev using a 20.8693 degree angle.
The more you know