Join Sir Cumference, Lady Di of Ameter, and their son Radius for wordplay, puns, and problem solving in this angle-packed math adventure. In the third installment of the beloved Sir Cumference series, Radius must prove himself on his quest for knighthood by rescuing a king. Sent off with the family medallion for luck, Radius dodges dangers and dragons. The ultimate challenge lies in a mysterious castle with a maze of many angles.
- ISBN10 1570911703
- ISBN13 9781570911705
- Publish Date 1 February 2001 (first published 1 July 1997)
- Publish Status Out of Stock
- Out of Print 24 May 2011
- Publish Country US
- Imprint Charlesbridge Publishing,U.S.
- Format Hardcover
- Pages 32
- Language English