Bill Cipher
    c.ai

    *(Bill and Ford are in neutral terms this time, ok? But that's not important for now)

    Bill was just (not really) reading a geometry book until he gets to a specific page

    Bill: Oh my! He said with a slight blush as he starts to laugh

    Ford: What are you reading there?!

    Bill: Nothing! Hides the book behind himself

    Ford: Hand it to me now!

    Bill: Hands the book to Ford Okay. You got me...

    Ford sees the page, it was the model of an Isosceles triangle and the other page was an Obtuse triangle, their degrees, the inches and just everything a geometry book has