Classifying Polygons

Front

What is a concave polygon?

Back

A concave polygon is a polygon that has at least one interior angle greater than 180 degrees, causing it to 'cave in'.

Front

What is a convex polygon?

Back

A convex polygon is a polygon where all interior angles are less than 180 degrees, and no line segment between any two points on the boundary ever goes outside the polygon.

Front

How can you identify a concave polygon?

Back

A concave polygon can be identified if at least one of its interior angles is greater than 180 degrees.

Front

How can you identify a convex polygon?

Back

A convex polygon can be identified if all of its interior angles are less than 180 degrees.

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 regular polygon?

Back

A regular polygon is a polygon with all sides and all 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

Can a polygon be both concave and convex?

Back

No, a polygon cannot be both concave and convex; it must be one or the other.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides.

Front

What are the types of quadrilaterals?

Back

Types of quadrilaterals include squares, rectangles, rhombuses, parallelograms, trapezoids, and kites.