The quilt is wonderful. And the backing and quilting are out of this world too.
The theorem stated more simply is Square one side of your triangle, add it to the square of the other side and the two of them added together they are the the square of the diagonal side. Once I used some formula I had had in class to figure out what was the biggest quilting square I could put in a round hoop for a decoration. I told my teacher the next day and she got a good laugh. I was a returning student which simply means I was a little older when I start college.