![]() A pyramid is a polyhedron with a polygon base and an apex with straight lines.The table below shows the properties of a pyramid: (BA = base area, P = perimeter, A = altitude, and SH = slant height ) Properties Regular hexagon base is called a hexagonal pyramid.Pentagon base is called a pentagonal pyramid.A quadrilateral base is called a square pyramid.Triangular base is called a Tetrahedron.Pyramids are typically described by the shape of their bases. It has a circular or oval base with an apex (vertex).Ī pyramid is a solid shape or a polyhedron with a polygon base and all lateral faces are triangles.The table below shows the properties of a cone where r denotes radius, h represents height and s represents slant height of the cone: Properties Based on how the apex is aligned to the center of the base, a right cone or an oblique cone is formed. It is formed by a set of line segments connected from the circular base to a common point, known as the apex or vertex. ![]() It has a flat surface and a curved surface, pointing towards the top.
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