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

The 5 Platonic Solids: 1 - 2 - 3 - 4 - 5
The 13 Semi-Regular Platonic Solids: 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13
More With Platonic Solids: 1 - 2 - 3 - 4

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