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Module 12 Vocabulary

TermDefinition
Area The measure of the interior surface of a two-dimensional figure.
Center The point from which all points on a circle are the same distance.
Circle The set of all points in a plane that are the same distance from a given point called the center.
Circumference The distance around a circle.
Composite figure A figure that is made up of two or more figures.
Composite solid An object made up of more than one solid.
Cone A three-dimensional figure with one circular base connected by a curved surface to a single point.
Cylinder A three-dimensional figure with two parallel congruent circular bases connected by a curved surface.
Diameter The distance across a circle through its center.
Face A flat surface of a polyhedron.
Hemisphere One of the two congruent halves of a sphere.
Lateral face In a polyhedron, a face that is not a base.
Pi The ratio of the circumference of a circle to its diameter.
Prism A polyhedron with two parallel congruent faces called bases.
Pyramid A polyhedron with one base that is a polygon and three or more triangle faces that meet at a common vertex.
Radius The distance from the center of a circle to any point on the circle.
Regular pyramid A pyramid whose base is a regular polygon and in which the segment from the vertex to the center of the base is the altitude.
Semicircle Half of a circle.
Slant height The height of each lateral face.
Sphere The set of all points in space that are a given distance from a given point called the center.
Surface area The sum of the areas of all the surfaces or faces of a three-dimensional figure.
Volume The measure of the space occupied by a solid. Standard units of measure are in cubic units.
Created by: user-1981839
 

 



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