TY - BOOK AU - Neuschwander,Cindy AU - Geehan,Wayne,ill TI - Sir Cumference and the Dragon of Pi SN - 1-57091-164-9 PY - 1999/// CY - Watertown, MA PB - Charlesbridge KW - Math and literature KW - Math KW - Pi N2 - Sir Cumference, Lady Di of Ameter, and Radius are back. This time, a potion has changed Sir Circumberence into a dragon. Join Radius as he tries to answer the riddle what magic number is the same in all circles ER -