4
A 3-d triangle, or a tetrahedron, has 4 vertices.
There are 4 vertices does the tetrahedron have
tetrahedron
a tetrahedron. it has four faces and six edges or vertices and four corner points
A tetrahedron has 4 vertices.
A tetrahedron has four vertices.
A Tetrahedron has 4 vertices
a tetrahedron has 4 vertices also known as 4 vertex
it has 12 vertices
A tetrahedron
There is not such thing as a three-dimensional triangle. You are thinking of a tetrahedron which is a three-dimensional figure with each side being a triangle. This has four vertices.
A tetrahedron has 4 vertices. By the way it has 4 faces and 6 edges.