Illustrator :: Moving Objects A Certain Distance At Angle

I'm trying to move an object a certain distance at a certain angle. I select the object and hit Enter to bring up the Move dialog. I enter the angle and distance, and instead of moving the specified distance, it moves some other distance. I don't get it. Am I doing it wrong? I can't imagine how else it's supposed to work. Here's a simple example:
 
Based on the angle and distance I entered in the video, the duplicate square should have been placed so that its lower right corner touches the upper left corner of the original. Instead, it only moved half an inch or so.