18 edges
Six.
Six.
There are 6 edges on a tetrahedron. The triangular base has 3, plus one for each lateral face.43 edges
A triangular based pyramid which is a tetrahedron has 4 faces, 6 edges and 4 vertices
A tetrahedron has 6 edges.
The base of a tetrahedron has three edges.
A tetrahedron has:4 faces4 vertices6 edges
6 edges
18 edges
A tetrahedron has 6 edges.
Six.
Six.
Six.
A tetrahedron is a triangular based pyramid that has 6 edges, 4 faces and 4 vertices
A tetrahedron has 6 edges
Six.