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Glite Dictionary
pentahedron

pentahedron

9.3
A solid shape with five flat faces
  • noun
  • /ˌpɛntəˈhɛdrən/
  • Specialized
translation icon : pentaedro
  • In geometry class, we learned that a pentahedron is a solid shape with five flat surfaces.

Examples

  • The artist created a sculpture resembling a pentahedron, showcasing its five flat faces in different colors.

  • The architect designed a unique pentahedron for the new city park that features five distinct flat faces.

  • I think a couple more slides we get another pentahedron and then starting to get hexahedra other than the cube, lots of them.

How Many Faces

octahedron
  • Specialized
1 8.2
pentahedron
  • Specialized
9.3
tetrahedron
  • Specialized
2 7.6

Surface Forms

pentahedron singular
pentahedra plural

Morphology

pentahedron = penta + hedron (semi-transparent) = penta + hedron

The meaning is directly compositional from Greek combining forms 'penta-' (five) + '-hedron' (face/solid), but both elements are technical combining forms that may be unfamiliar to average learners.

Etymology

Pentahedron comes from Greek parts: penta- meaning 'five', the same penta- you see in pentagon, and -hedron meaning 'face' or 'side' of a solid. So a pentahedron is a solid figure with five flat faces.