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regular tetrahedron

NOUN
  1. a tetrahedron with four equilateral triangular faces

How To Use regular tetrahedron In A Sentence

  • The regular tetrahedron is the most basic of all polyhedra.
  • If each edge has the same length and each face is an equilateral triangle, the result is a regular tetrahedron - one of the Platonic solids.
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