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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4303 px × 4302 px |
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Property Release : | Non requis |
Restrictions : | - |