How do you say “tetrahedron” in Vietnamese?

Vietnamese words for “tetrahedron”

• tứ diệnListennoun
  Hanoi [tɨ˧˦ ziən˧˨ʔ] · Saigon [tɨ˦˥ jiəŋ˨˩˨]tứ rising diện heavy

  tetrahedron

  for “tetrahedron” meaning: A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.