**There are examples of pentagons in real life in man-made structures like the Pentagon in the United States, and also in nature in flowers like morning glories and okra.** Other items, like home plates in baseball, are often in the shape of irregular pentagons.

A pentagon is a five-sided shape. If the sides are all the same length, the internal angles will be the same size as well, and the shape is called a regular pentagon. Any other pentagon with sides of varying length is an irregular pentagon. Despite having just one more side than a square, pentagons are used and seen much less frequently in real life.