3 videos
2 skills
Have you ever wondered how much fencing you need to surround a plot of land? No? Well, you should still go through this tutorial just in case. You'll learn all about how to think about and calculate perimeter--essentially the length of the boundary of a figure.

Introduction to perimeter

VIDEO 3:21 minutes
Find perimeter by adding side-lengths of various figures.

Perimeter of a shape

VIDEO 2:03 minutes
Find perimeter of various shapes.

Find perimeter by counting unit squares

Calculate the perimeter of a shape from its side lengths.

DEPRECATED: Finding perimeter

Find perimeter or a side length of a figure without a visual shown.

Comparing areas and perimeters of rectangles

VIDEO 5:34 minutes
Compare the areas and perimeters of rectangles to a given rectangle.