How do you define the perimeter of a polygon?

The perimeter of a polygon is defined as the total distance around the outside of the polygon. This is calculated by adding up the lengths of all the sides of the polygon. Each side contributes to the overall distance that encloses the shape, which is why this definition is accurate.

Understanding this concept is essential when dealing with various shapes in geometry, as the perimeter provides critical information for measurements and practical applications, such as fencing a yard or framing a picture. Other choices do not accurately describe the perimeter; only the option referring to the distance around the polygon captures the correct definition.