pyramid
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A triangular prism
sorry but all i can find is 4 faces 6 edges and 4vertices's :(
A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateral triangles and it is a regular tetrahedron - one of the 5 Platonic Solids.
4 triangles and a square. total of 5 faces
A rectangular-based pyramid.