Square

Square is the nerdiest 2D shape you will find out there, he specially hypes about higher dimensional geometry, "What would a 3D square look like? And how about a 3D oval????" is something he will most likely tell you if you ask him about his hobbies. Still, his world isn't complete with just math puzzles, he also could not live without his friends: Triangle and Circle. Even though he doesn't understand some of it very well(abstract stuff is REALLY hard for him to wrap his head around), Square absolutely loves listening about the things his friends are passionate about. For him excitement is really contagious - And oh boy, he is such an excited guy!