Classifying Polygons

Front

What is a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments connected end to end.

Front

True or False: A polygon must have at least three sides.

Back

True

Front

What is the minimum number of sides a polygon can have?

Back

Three (a triangle).

Front

Define a triangle.

Back

A triangle is a polygon with three sides and three angles.

Front

Define a quadrilateral.

Back

A quadrilateral is a polygon with four sides and four angles.

Front

What is a pentagon?

Back

A pentagon is a polygon with five sides and five angles.

Front

True or False: All quadrilaterals are polygons.

Back

True

Front

Which of the following is not a polygon: Circle, Triangle, Square?

Back

Circle (it is not a closed figure made of straight line segments).

Front

What do you call a polygon with all sides and angles equal?

Back

Regular polygon.

Front

What is an irregular polygon?

Back

An irregular polygon is a polygon that does not have all sides and angles equal.