The Truncated Tetrahedron

The truncated  tetrahedron is created by truncating (cutting off) the tips of the tetrahedron one third of the way into each edge

8 total faces:
4 equilateral triangles and 4 regular hexagons

12 vertices:
2 hexagons and 1 triangle

18 edges

Dihedral angles:
70 degrees, 32 minutes for the hex-hex angle,
109 degrees, 28 minutes for the hex-tri angle