I've yet to receive any letters to the editor correcting my error, but I cannot sleep until I do it myself. It ocurred to me while polishing the ivories that the distance around the outside of a circle, while it could be argued is perimeter, is actually circumference.
That, my friends, is why I'll not be homeschooling children!
And please no letters to the editor on this post: it was typed with one digit on my gen 1 iPhone. You and I know I graduated cum laude with an English major, but iPhone does not concur.