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triangular prism
A triangle has one face, three vertices and three edges.
Three congruent rectangles.
You have the triangle on the bottom and the three faces on the sides, which means there are 4 faces and 6 edges.
No. A triangle is a two-dimensional polygon (flat figure). It has sides that consist of three line segments, with an interior area. Only a three-dimensional form (polyhedron) can have faces. Triangles serve as faces for any number of polyhedrons, such as pyramids.