volume

the amount of space inside a three-dimensional figure

vertex

the point where 3 or more faces meet on a three-dimensional figure

unit cube

a cube with a side the length of one unit

triangular prism

a prism that has triangular bases

three-dimensional figure

a figure that has length, width, and height

rectangular prism

a prism that has rectangular bases

prism

a three-dimensional figure with 2 parallel, congruent faces, called bases. At least 3 faces are rectangles

face

a flat surface

edge

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

cubic unit

the unit of measure for volume

cube

a three-dimensional figure with six faces that are congruent squares

congruent figures

two figures that have the same size and shape

composite figures

a figure that is made of two or more three-dimensional figures

bases

two parallel congruent faces in a prism