A tetrahedron has 6 edges
A tetrahedron has:4 faces4 vertices6 edges
A tetrahedron triangular based pyramid has 6 edges, 4 faces and 4 vertices
A tetrahedron is a triangular based pyramid that has 6 edges, 4 faces and 4 vertices
Six.
A bialtitude is a line perpendicular to two opposite edges of a tetrahedron.
A tetrahedron does not normally have any verticals but it can have three [mutually] vertical edges at one vertex, or two sets of mutually perpendicular edges at two vertices.
No and Yes A regular tetrahedron does not have any faces that are perpendicular to each other. (Regular in this sense means all edges are equally long - all faces are equilateral triangles)You can construct a irregular tetrahedron with two or three perpencdicular faces. To make such a tetrahedron with three faces perpendicular, simply cut the corner of a cube.
A tetrahedron has 6 edges.
A tetrahedron has 6 edges
hemisphere
The base of a tetrahedron has three edges.
A tetrahedron has:4 faces4 vertices6 edges
It has 8 edges.
6 edges
18 edges
6 edges