I measured the height just for illustration. Trying to measure the width with the shoes off of the car is too difficult. (there are gaps, and it's difficult to tell how much gap to use to set up the picture).
You have to use a little logic. In the picture above where I measured the shoe, it was a little over 9" from top to bottom of the shoe. That would rule out that it was for 9" brakes as it was bigger.... It's just for ballpark purposes, quick and dirty....