Classifying Polygons

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

What is a convex polygon?

Back

A convex polygon is a polygon where all interior angles are less than 180 degrees, and no vertices point inward.

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 at least one vertex to point inward.

Front

How many sides does a triangle have?

Back

3

Front

How many sides does a quadrilateral have?

Back

4

Front

How many sides does a pentagon have?

Back

5

Front

How many sides does a hexagon have?

Back

6

Front

How many sides does an octagon have?

Back

8

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.