Prismatoids {pyramid} can have polygon bases, which contain all vertices except apex. Lateral faces are triangles. For tetrahedrons, bases are triangles. In regular pyramids, regular polygons can be bases and isosceles triangles can be lateral faces.
Mathematical Sciences>Geometry>Solid>Polyhedron>Kinds>Prism
3-Geometry-Solid-Polyhedron-Kinds-Prism
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Date Modified: 2022.0224