__Face__ – A flat surface of a polyhedron

__Edge__ – The line segment along which two faces of polyhedron intersect.

__Vertex__ – On a polyhedron, the intersection of three or more faces; on a cone or pyramid, the top point.

__Base__ – A face of a three-dimensional figure by which the figure is measured or classified.

__Polyhedron__ - A three-dimensional figure in which all the surfaces or faces are polygons.

__Prism__ – A polyhedron that has two congruent polygon-shaped bases and other faces that are all parallelograms.

__Pyramid__ – A polyhedron with a polygon base and triangular sides that all meet at a common vertex.

__Lateral surface__ – in a cylinder, the curved surface connecting the circular bases; in a cone, the curved surface that is not a base.

__Cylinder__ – A three-dimensional figure with two parallel, congruent circular bases connected by a curved lateral surface.

__Cone__ – A three-dimensional figure with one vertex and one circular base.

__Sphere__ – A three-dimensional figure with all points the same distance from the center.

__Hemisphere__- A half of a sphere.