laurajbr, when I graduated high school (60 years ago this year) I could recite all the theorems as we were required to memorize them for tests. We couldn't use the book to look it up. As I had no occasion to use geometry in the years after my formal schooling, I couldn't recite even one by the time I got out of college.
I didn't become interested in making a quilt until about 20 years ago. I feel for you. Good luck to you.