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15 Cards in this Set
 Front
 Back
three sided figure

triangle


four sided figure

quadrilateral


five sided figure

pentagon


six sided figure

hexagon


seven sided figure

heptagon


eight sided figure

octagon


nine sided figure

nonagon


ten sided figure

decagon


a closed figure
all lines connected 
polygon


all sides of the polygon are congruent

regular polygon


A foursided polygon with two pairs of parallel sides. The sum of the angles of a shape is 360 degrees.

parallelogram


A foursided polygon having all four sides of equal length. The sum of the angles of a shape is 360 degrees.

rhombus


A foursided polygon having exactly one pair of parallel sides.The sum of the angles of a shape is 360 degrees.

trapezoid


A triangle having a right angle.

right triangle


A triangle having all three sides of equal length.

equilateral triangle
