Tetrahedron. A regular tetrahedron is formed from four equal sides, each of which is an equilateral triangle. Also considered a triangular pyramid, th

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Tetrahedron. A regular tetrahedron is formed from four equal sides, each of which is an equilateral triangle. Also considered a triangular pyramid, the tetrahedron is one of the five Platonic solids.

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Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
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Keywords: -dimensional, 3d, dimensional, equilateral, geometrical, geometry, object, plastic, platonic, pyramid, red, regular, shape, sides, solid, tetrahedron, toy, triangle, triangles, triangular