A triangular pyramid, also known as a tetrahedron, has the following characteristics:
- It has exactly four faces that are triangles.
- It has 4 vertices.
- It has 6 edges.
Based on this information, the true statements about a triangular pyramid are:
- It has exactly four faces that are triangles.
- It has 4 vertices.
- It has 6 edges.
So, the correct options are the last three statements.