Intro to Perimeter for Kids: How to Find the Perimeter of Polygons - FreeSchool
Perimeter is the distance around the outside of an object. It is easy to find the perimeter of objects with straight sides - or polygons - all you need to do is add up the lengths of the sides! Check out this fun video for how to find perimeter and some examples of when you might need to.
Math Antics - Perimeter
Watch this video to learn how to measure the perimeter of compound shapes.