20 terms

# CH 12 Math Vocabulary

Ch 12 MATH VOCABULARY

#### Terms in this set (...)

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