num_pages: 32
description: King Arthur has issued a challenge. The first knight to find the sword Edgecalibur will be the next king. Join Sir Cumference, Lady Di of Ameter, and their son, Radius, as they race to help their friend, Vertex, find the sword and discover the secrets of cubes, pyramids, cylinders, and cones.
language: English
title: Sir Cumference and the Sword in the Cone
titlecomplete: Sir Cumference and the Sword in the Cone
genres: Mathematics, Fantasy, Geometry, Education, Picture Books, Childrens, Juvenile, School, Fiction, Medieval
ratings_count: 546
series: Sir Cumference, Charlesbridge Math Adventures
publisher: Charlesbridge