base

a three-dimensional figure's face by which the figure is measured or named

cone

a three-dimensional figure that has a flat, circular base and one apex

congruent

having the same size and shape

cylinder

a three-dimensional figure that has two parallel bases that are circles

edge

the line segment where two or more faces of a three-dimensional figure meet

face

a polygon that is a flat surface of a three-dimensional figure

height

the distance from the base to the farthest point of a two- or three-dimensional figure

length

a measure of a side of a figure

parallel faces

faces in a three-dimensional figure that are parallel to each other

perpendicular faces

faces in a three-dimensional figure that are perpendicular to each other

polyhedron

a three-dimensional figure with faces that are polygons

prism

a three-dimensional figure that has two congruent, polygon-shaped bases, and other faces that are all rectangles

pyramid

a three-dimensional figure with a polygon base and all other faces triangles that meet at a common vertex

rectangular prism

a prism in which all six faces are rectangles

sphere

a round object whose curved surface is that same distance from the center to all its points

surface area

the sum of the areas of all the faces, or surfaces, of a three-dimensional figure

triangular prism

a prism in which two parallel faces are triangles

vertex (plural is vertices)

the point of intersection of three or more edges of a three-dimensional figure

volume

the measure of the amount of space a three-dimensional figure occupies

width

a measure of a side of a figure