Doing the trig to find the size of the monitor based on the number given in the first post, I came up with a number close to 28". I'm going to assume those number2 include mounts that make the dimensions larger. I'm going to call this a 25" monitor. Since we're not getting much input on the subject, I'm going to leave it at that...
You've PROBABLY got yourself a 25" monitor. That's a good thing.