**3.**parallelogram with four congruent sides.**4.**a round solid three-dimensional figure with every point on its surface equidistant from its center**7.**three-dimensional figure with two congruent circular bases that lie in parallel planes**8.**is a three-dimensional figure that has a circular base, a vertex not in the plane of the circle, and a curved lateral surface.**9.**the set of all points in a plane that are a given distance, the radius, from a given point

**1.**is a parallelogram with four congruent sides and four right angles.**2.**is a three-dimensional al figure whose surfaces, or faces, are polygons.**5.**a polyhedron with two congruent and parallel faces, which are called the bases.**6.**polyhedron in which one face, the base, is a polygon and the other faces, the lateral faces, are triangles with a common vertex.**10.**polyhedron with six faces, each of which is a square