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Geometry: Area and Volume
Vocabulary Words for Measurement: Area & Volume
13
Mathematics
6th Grade
03/08/2009

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Term
area
Definition
The area of a figure is the amount of surface it covers. We measure area in square units.
Term
base
Definition
a side of a polygon; a face of a three-dimensional figure by which the figure is measured or classified.
Term
cone
Definition
a cone has a circular base and and a curved surface that comes to a point. A cone is not a polyhedron because not every face is a polygon.
Term
cylinder
Definition
a three-dimensional figure with two parallel, congruent circular bases connected by a curved lateral surface.
Term
edge
Definition
the line segment along which two faces of a polyhedron intersect.
Term
face
Definition
a flat surface of a polyhedron
Term
net
Definition
a net is the pattern made when the surface of a three-dimensional figure is layed out flat showing each face of the figure.
Term
polyhedron
Definition
a three-dimensional figure in which all the surfaces or faces are polygons.
Term
prism
Definition
a prism is a polyhedron with two congruent, parallel bases, and other faces that are all parallelograms.
Term
pyramid
Definition
a polyhedron with a polygon base and triangular sides that all meet at a common vertex.
Term
surface area
Definition
the sum of the areas of the faces, or surfaces, of a three-dimensional figure.
Term
vertex
Definition
a point at which three or more edges of a polyhedron meet (plural = vertices)
Term
volume
Definition
the number of cubic units needed to fill a given space.
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