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Mod 12 Vocab

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 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 it's center.
Face A flat surface of a polyhedron.
Hemisphere One of 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 it's diameter. The Greek letter p represents this number. The value of pi are 3.14415926... Approximations for pi are 3.14 and 22/7.
Prism A polyhedron with two parallel congruent faces called bases.
Pyramid A polyhedron with one base that is a polygon and three or more triangular 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 called the altitude.
Semicircle Half of a circle. The formula for the area of a semicircle is A=1/2 (pi) (r)^2.
Slant Height The height of each lateral face.
Sphere The set of all points in space that are given distance from a given point called the center.
Surface Area The sum of the areas of all the surfaces (faces) of a three-dimensional figure.
Volume The measure of the space occupied by a solid. Standard units of a measure are cubic units such as in^3 or feet^3
Created by: user-1981850
 

 



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