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The triangular pyramid has.
A three dimensional triangular figure with three faces and a base is called a triangular pyramid. It has four vertices, four faces, and six edges.
A three dimensional figure with polygonal faces is called a polyhedron. Specific names draw from the Latin prefixes. For example a four sided figure is a tetrahedron.
TRUE: To find the surface area of a three dimensional figure, you must find the area of each of its faces and then add them together.
Prisms are three dimensional figures that always have two congruent faces. The congruent faces are also parallel to one another.