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29 Cards in this Set
 Front
 Back
angle

A figure formed by two rays that have a commom endpoint


area

The number of square units needed to cover a flat surface.


cone

A space figure with one circular base, and a curved surface


congruent

A word or symbol used to indicate equivalency of measure (=)


cube

A space figure with six congruent square faces.


cylinder

A space figure with two parallel, congruent circular bases and a curved surface.


edge

The line segment where two faces of a space figure meet.


face

A flat surface of a space figure.


flip

To turn a figure to its reverse side.


hexagon

A polygon with six sides.


intersecting lines

Lines that meet or cross.


line

A set of points in order extending indefinitely in opposite directions.


line of symmetry

A line that divides a figure into two congruent parts.


line segment

A part of a line that has two endpoints.


ordered pair

A pair of numbers that is used to locate a point on a coordinate grid.


parallel lines

Lines that are side by side, but never cross.


pentagon

A polygon with five sides.


perimeter

The distance around a figure.


polygon

A simple closed figure with sides that are line segments.


pyramid

A space figure whose base is a polygon and whose faces are triangles.


ray

A part of a line that has one endpoint and goes on forever in one direction with an arrow.


rectangular prism

A prism with six rectangular faces.


right angle

An angle that forms a square corner.


similar figures

Figures that have the same shape. They may or may not be the same size.


slide

To move in a straight line without changing direction.


space figure

A threedimensional figure that has volume (3D).


sphere

A curved space figure that is the shape of a globe.


turn

TO move around a point. A turn moves an object clockwise or counterclockwise.


volume

The number of cubic units needed to fill a space figure.
