Haha, I thought your signature was part of the post, and that you were telling everyone not to freak out about the square pie.
Pi r round, as you suggested, makes no mathematical sense whatsoever. The correct formula, pir^2, is verbalized as "pi are squared". You are pointing out the "error" in squared, but it's not referring to it's shape, it's just another way of saying r times r. The formula would still work if it was pi times r times r. Also, there is no mathematical formula that is the circle you stated in the OP. Thou hath been proven wrong.
Remember, McDonalds never gives you the ones to the left. So pies are never perfect circles. They are more of a mushed mess of food in dough. Unless it is a pizza.
