Hi, this is my first post here, so I'm not sure if I'm posting this in the right place, so bare with me.

A couple of weeks ago my Geometry teacher handed out some extra credit. There was one problem I had a little difficulty. I'm pretty sure because I was overthinking it. We turned the extra credit in today, adn I wanted to know if it was really as hard as it felt or if I was, in fact, over thinking it.

Here's the problem: