by Cindy Neuschwander
Illustrated by Wayne Geehan
Sir Cumference is back and he's not alone,
Helping Sir Vertex seek the sword in the cone.
King Arthur has hidden his sword, Edgecalibur, and he has issued a challenge. The first knight to find his sword will be the next king. Sir Cumference, Lady Di of Ameter, and their son, Radius, race to help their friend, Vertex, find the sword. Will Vertex's sharp thinking give him the edge?
Join these adventurers as they discover the secrets of cubes, pyramids, prisms, cylinders, and cones for another exciting Math Adventure!
Of the five Sir Cumference books, this one deals with a slightly more advanced subject of solid (3-dimensional) geometry.
Even the most reluctant math student will enjoy this unique approach to learning geometry!
Softcover, 32 pages
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