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29 Cards in this Set

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  • 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 three-dimensional figure that has volume (3-D).
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.