Define and identify polygons worksheet



Name _____________________                                        Date:_____________________


Using the word box below, write down the correct word next to each definition.

Concave
Decagon
Exterior angle
Dodecagon
Irregular
Convex
Hexagon
Heptagon
Interior angle
Quadrilateral
Regular
Pentagon
Octagon
Nonagon
Triangle


A polygon with five sides is called ___________________


This is a polygon with ten sides ___________________


A polygon with six sides is called ___________________


This is the name of a three-sided polygon ___________________


No matter how I choose two points inside a polygon, the segment joining these 2 points will lie completely inside the polygon. This polygon is called ___________________


A polygon where all sides and all angles are congruent ___________________


This is the name of a polygon with twelve sides ___________________


A polygon with eight sides is called ___________________


Two adjacent sides of a polygon form a geometric figure called ___________________


A polygon with seven sides is called ___________________


If two points inside a polygon can form a segment that does not lie completely inside the polygon. This polygon is called ___________________


A polygon with 3 sides is called ___________________


A geometric figure formed by a side of a polygon and an extension of an adjacent side is called ___________________


A nine-sided figure is called ___________________


A polygon with at least one pair of sides or angles is not congruent is called ___________________


A figure with four sides is called ___________________


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