Meaning & use
polyhedron
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A solid three-dimensional shape with flat polygonal faces, straight edges, and sharp corners.
See it in a sentence
A cube is a simple polyhedron with six square faces.
The students built a polyhedron out of cardboard triangles for their geometry project.
A note on using this word
The plural can be either "polyhedrons" or "polyhedra"; common examples include cubes, pyramids, and prisms.
Make it your own
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