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35 Cards in this Set
 Front
 Back
A polygon with six sides.

Hexagon


angle

A figure that is formed by two rays or two line segments with a common endpoint.


Circle

the set of all points in a plane that are the same distance from a given oint known as the center.


Circumference

The distance around a circle or sphere (perimeter of a circle)


concave polygon

a polygon in which at least on vertex is "pushed in"


Concentric circles

circles that have the same center but different radii.


congruent

having the same shape and size


convex polygons

a polygon in which all verticies are pushed outward


diameter

a line segment that passes through the center of a circle or sphere and has endpoints on the circle or sphere.


endpoint

A point at the end of a line segment or ray


equilateral triangle

a triangle with all angles and sides equal.


hexagon

a polygon with six sides


intersect

to meet or cross


kite

a quadrilateral with two pairs of adjacent equal sides. The four sides cannot have the same length


line segemnt

a straight path joining two points called endpoints.


nonagon

apolygon with nine sides


octagon

apolygon with eight sides


Parallel

never meeting and always the same distance apart


parallelogram

a quadrilateral with two pairs of parallel sides that are congruent.


pentagon

a fivesided polygon


perimeter

the distance around the outside of a 2d shape.


perpendicular

meeting at right angles


point

an exact location in space


polygon

a closed 2d figure that is made up of line segments and has one inside and one outside


quadrangle or quadrilateral

a polygon that has four sides


radius

a line segemnt from the center of the circleto any point on the circle. Half the diameter


ray

a straight path that extends infinitely from one endpoint


rectangle

a quadrilateral with right angles


regular polygon

a polygon in which all angles and sides are equal


rhombus

a quadrilateral whose sides are all the same length


a right triangle

a triangle with a right angle


square

arectangle with all congruent sides


trapezoid

a quadrilateral with only one pair of parallel sides


triangle

a polygon with three sides


vertex

the point where the rays of an angle meet
