Question

can you explain what is tetrahedron?

Answer 1

in geometry,tetrahedron is a polyhedron composed of 4 triangular faces,6 edges,and 4 vertex corners.

Answer 2

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In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces.