In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons) is a polyhedron composed of four triangular faces, three of which meet at each corner or vertex. It has six edges and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces. The tetrahedron is the three-dimensional case of the more general concept of a Euclidean simplex.
6 Vitamins And Minerals That Boost Brain Power. 1  1.Thiamine (B1) 2  2. Folic acid (B9) 3  3. Ascorbic acid (vitamin C) 4  4. Calcium. 5  5. Magnesium. 6  6. Zinc. 7  Also Watch A Video On: Top 4 Healthy Foods to Boost Your Brainpower. 8  Conclusion.
Vitamin K is a fat-soluble vitamin, so your body stores it in fat tissue and the liver. It is best known for its role in helping blood clot, or coagulate, properly.The K comes from its German name, Koagulationsvitamin. Vitamin K also plays an important role in bone health. It is rare to have a vitamin K deficiency.verview. Vitamin K is a fat-soluble vitamin, so your body stores it in fat tissue and the liver. It is best known for its role in helping blood clot, or coagulate, properly. The K comes from its German name, Koagulationsvitamin. Vitamin K also plays an important role in bone health.