A tetrahedron, or triangle-based pyramid, has four corners, four faces and six edges.
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5 faces 9 edges 6 corners
With 4 faces it is a tetrahedron. It is also called a triangular pyramid.
A triangular based pyramid is usually called a tetrahedron and it has 4 faces, 6 edges and 4 corners (usually called vertices)
NO!!!! A Cube and cuboid have six(6) faces eight (8) corners/nodes twelve (12) edges.
A Cuboid has 8 Corners, 6 Faces/Sides, and 12 Edges.