Polygon Basics

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

What are the characteristics of a convex polygon?

Back

A convex polygon has all its interior angles less than 180 degrees, and no line segment between any two points on its boundary lies outside the polygon.

Front

What are the characteristics of a concave polygon?

Back

A concave polygon has at least one interior angle greater than 180 degrees, and at least one line segment between two points on its boundary lies outside the polygon.

Front

What is a regular polygon?

Back

A regular polygon is a polygon with all sides and angles equal.

Front

What is an irregular polygon?

Back

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

Front

How can you determine if a shape is a polygon?

Back

A shape is a polygon if it is a closed figure with straight sides and does not intersect itself.

Front

What is the difference between a polygon and a non-polygon?

Back

A polygon has straight sides and is closed, while a non-polygon may have curved sides or may not be closed.

Front

What is the sum of the interior angles of a polygon with n sides?

Back

The sum of the interior angles of a polygon with n sides is (n-2) × 180 degrees.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides.

Front

What is a triangle?

Back

A triangle is a polygon with three sides.