cuboctahedron

The cuboctahedron is created by either truncating (cutting off) the cube one half of the way into each edge or by truncating the octahedron one half of the way into each side.

14 total faces: 8 equilateral triangles and 6 squares

12 vertices: 2 triangles and 2 squares

24 edges

Dihedral angles:
125 degrees, 16 minutes