31 terms

rectangle

a polygon with four sides and opposite equal sides

square

polygon with four sides and all sides equal in

length

length

trapezoid

polygon with four sides and exactly one set of parallel sides

triangle

polygon with three sides and three angles

attribute

characteristic of a shape

circle

a round shape that has no beginning or end

half-circle

half of a circle

quarter-circle

1/4 of a circle

apex

The point furthest from the base of an object.

cylinder

A three-dimensional figure with two parallel and congruent circles as bases, one curved surface, two curved edges, and no vertices

cone

A three-dimensional figure with one curved surface, one flat surface (usually circular), one curved edge, and one apex ( special vertex that is only located at the top of a cone or pyramid).

rectangular prism

A prism with six rectangular faces.

prism

A three-dimensional figure that has two congruent and parallel faces that are polygons. The remaining faces are parallelograms.

face

A plane figure that serves as one side of a solid figure

plane

A plane figure. If the solid is a cylinder or prism, there are two bases that are parallel and congruent.

vertex

The point at which two line segments,

lines, or rays meet to form an angle.

lines, or rays meet to form an angle.

angle

where two lines meet

closed figure

a shape that begins and ends at the same point

open figure

a shape that has an opening

compose

to make by combining

cube

A regular solid having six equal square faces.

edge

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

feature

characteristic

half

one of two equal parts

side

A line segment connected to other segments to form a polygon.

solid

A three-dimensional (3D) shape

two-dimensional (2D)

a flat shape

three-dimensional (3D)

having length, depth and height

hexagon

6 sided figure

octagon

8 sided figure

sphere

ball