After thinking long and hard about his knowledge of geometric shapes, Jonny blurted out: Trapezoid!  He got it right.  He received a free slice of pizza from the owner of the pizzeria and was told to retrieve his next clue from Bob (the cashier) at the CVS down the street.  Jonny finished his slice and skipped down the street.  When he walked into CVS, Bob was expecting him and immediately handed Jonny his third clue: