# 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 ___________________