Anything math related = a major head ache for me.... Ok, now that I got that equation out of the way, here is my story/question: I am building a bezel, or a mounting panel, that will cover an old ashtray compartment. Ultimately, I will have a few small electronic displays and connections that will be within the display. However, right now, I am just trying to fabricate the main body of the bezel before I start making slots for the electronic stuff... So this is where my math question comes into the picture. The area that the bezel will cover is rectangular with rounded corners. So unfortunately, it is not as easy as measuring the length and width and cutting my material to those dimensions. What I am trying to figure out is if there is a way to measure the rounded corners and put a number to it. I may be way off but I assume the term I am looking for is the "arc" of the corners. Someone please correct me on that if I am mistaken. If anyone knows what I am talking about and can shed some light on this subject I would greatly appreciate it. Thanks.