What are examples of concave polygons?

In this lesson, review what polygons are. Then, learn about the angle and resulting qualities that make concave polygons unique. read more

In a concave polygon, at least one diagonal of the figure contains points that are exterior to the polygon. Convex polygons are found in many important mathematical theorems. In real life, a stop sign is an example of a convex polygon, and a cross is an example of a concave polygon. read more

Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is"closed" (all the lines connect up). read more

A concave polygon is a polygon with at least one angle larger than 180 degrees. Because a concave polygon has an angle larger than 180 degrees, you could create a 'cave' or a 'pocket' by enclosing it at the vertex where the large angle sits. read more