it has two faces five vertices and eight edges
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1 Face (2D) 4 Faces (3D) 3 Sides 3 Points, and 2 Congruent sides.
By its very nature of being a triangle, and a 2D shape, a triangle cannot have four plane faces. However, a tetrahedron is a polyhedron made up of four triangular faces.
all 2D figures have 1 face.
One.
four triangle faces.