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tetrahedron |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.04 sec. |
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tetrahedron: see polyhedron polyhedron (pŏl'ēhē`drən), closed solid bounded by plane faces; each face of a polyhedron is a polygon . ..... Click the link for more information. . |
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| There were also crocheted versions of the five Platonic solids--the cube, the tetrahedron, the octahedron, the dodecahedron, and the icosahedron--as well as a bricklike fractal object called Menger's sponge. Based on the true story of one math class's quest to build a record-breaking tetrahedron, this compelling story is told from the perspectives of four middle schoolers and their teacher, each hesitant about participating, but each changed by the experience. Collins, for reasons obscure even to himself, enlists four of his students in an after-school club to build a giant tetrahedron composed of 16,384 smaller tetrahedrons to get themselves into the Guinness Book of World Records. |
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tetrahedron
