King Arthur has issued a challenge--the first knight to find the sword Edgecalibur will be the next king--and Sir Cumference wants to be the one...
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When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi which will restore him to his former shape...
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Radius is on a quest. To earn his knighthood he must find and rescue a missing king with only a circular medallion, a mysterious poem, and his own wits to guide him...
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Sir Cumference and lady Di planned a surprise party for King Arthur, but no one anticipated so many guests showing up. How many chairs do they need? And the guests need to be fed! Sir...
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Sir Cumference, his wife, Lady Di of Ameter, and their son Radius use different geometry and problem-solving techniques to help King Arthur...
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