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### 17 Cards in this Set

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 Polyhedron solid formed by polygons face flat side of a polyhedron edge intersection of two faces vertex intersection of 3 or more faces regular polyhedron only if each face is a regular polygon, each face is congruent to the other faces, faces meet at the vertex at the same way, then it is regular polyhedron. prism two faces are the bases that are congruent and parallel ploygons. it has lateral faces which are parallelograms right prism lateral edges are perpendicular to the bases oblique prism not a right prism altitude any segmenent that is perpendicular to the bases (height) great circle half a the base of a hemisphere axis connects the centers of the bases of a cylinder the volume of a prism or cylinder is base area times hieght the volume of a cone or a pyramid 1/3 base ares times hieght volume of a sphere 4/3πr^3 volume of a hemisphere 2/3πr^3 surface area of a sphere 4πr^2 surface area of a hemisphere 3πr^2